Mast Cell Tumors in Dogs: some advances in conventional care
ByHi! I have been getting feedback about mast cell tumors and I would like to get some info out there. I will focus on some conventional medicine advances for the time being that should be thoroughly checked into by dog lovers interested in mast cell tumors. These are not general cancer recommendations, rather just a window to full spectrum care, which is a phrase I coined to describe evidence-based selection of cancer fighting weapons from any source. I will focus on Western (allopathic) viewpoints today.
First, the traditional treatment is surgery…get ‘em out. I wrote about pre-treatment with Benadryl before surgery, in a previous post, so remind your vet. Have any mass aspirated (needle biopsy) before surgery to diagnose most mast cell tumors so your vet surgeon has a general diagnosis before surgery.
Chemo consists of drugs like prednisolone, vinblastine, and others traditionally. Chemo in dogs is tolerated better than in humans as lower doses are used for cancer. The word “chemo” has a bad ring to it, but this is a prejudice developed from human medicine. Dogs generally handle it better, on the average, although everyone is different.
Note: if you have a Collie or related breed, make sure your vet tests for a MDR-1 gene mutation common in these herding dogs. This genetic issue may increase chances of side effects not only from vinblastine (above), but also vincristine and doxorubicin. Doses of these drugs shoud be lowered significantly if your dog is positive on this test. For more information, see the post on 8/30/08.
Predisolone or prednisone (”pred”, ) are cheap, common, side effects are most often not too bad, and they are tablets so you can change the dose easily depending on your dog’s responses. Vinblastine is a stronger chemo vinca alkaloid chemo agent, more potent than pred, which requires the dog to be in the hospital for injections. Some oncologists like cyclophosphamide and L-asparaginase (you’ll get different opinions and preferences from different oncologists). These are all used for mast cell tumors.
Some stats for Grade 3 mast cell tumors treated with surgery, pred, and vinblastine: At 1 year after surgery, 57% of dogs were still alive, and at 2 years 45% were still alive. Average remission times are about 10 weeks to 5 months with surgery, prednisolone, and vinblastine. Remember, every dog is different however.
Radiation is used for mast cell tumors that are difficult to remove completely, or any grade 3. This can be high voltage radiation, or brachytherapy, which involves the use of radioactive implants within the tumor site. Yes, a little weird, involved, and costly, but long remissions in the literature.
Many are not into invasive care, so take a look below:
One that should be considered for a less intensive protocol is Lomustine, or CCNU. This drug has gotten a lot of attention in the last couple of years for good reason. It is a pill, and can be given every 3 weeks. Pretty easy and non-invasive, unlike most chemo protocols, and is a single agent so it is simple. About 40% of dogs with mast cell tumors respond to CCNU all by itself, which is pretty darn good.
Cimetidine should be used in dogs with mast cell tumors, especially those with decreases in appetite or vomiting. This is an antacid which kills two birds with one stone. Mast cell tumors cause excessive acid production in the stomach when they get bad, which cimetidine counters. Additionally, cimetidine has some good anticancer effects that have nothing to do with acid stomach. Finally, it is cheap and easy to get.
Ask your vet about intralesional triamcinolone. They may have not used it before, so do not be surprised, but they can access the info easily (1 mg per cm q 2-3 weeks SQ). It is an simple injection of a form of cortisone that most vets will have sitting on their shelves. It is not very expensive, and very common. Every 2-3 weeks, your vet can inject the mast cell tumor, or infuse the area where the mast cell tumor was removed, with a small dose of this drug. The direct contact of the triamcinolone with any mast cells left in the body will blast them pretty good.
A new drug called SU 111654 (great name eh?) is being worked on at Michegan State University. Looks promising. There is also a technique out there consisting of injecting the mast cell tumor sites with deionized water. Cheap as dirt, but mixed reviews.
This post is just a piece of full spectrum cancer care for mast cell tumors folks. There is a lot more, but I’ll let you sink your teeth into this…
Best to all,
Dr Dressler
















105 Comments
August 22nd, 2008 at 3:00 pm
Hi Dr. Dressler,
Of course there are many things to consider after such grave diagnosis’. Yet MORE to digest and being aware of. Often times the more options put forth … the more questions become needed. As I described in my post of what supplement is best for dogs with diagnosed mast cell cancers.
Our veterinarian did not suspect mast cell cancer at all so he did not give our dog a Benadryl injection prior to removing the skin growth that we found on our 9 1/2 - 10 -year-old Golden Retriever earlier this month. And, unfortunately, I did not know about you or your blog then or read about doing this. In your other post on mast cell tumors and pre-surgery Benadryl injection you said “Make sure that your Vet is on the ball…”
We have been very happy with the veterinarian that we have been going to for over four years now. He and his colleague have been veterinarians for 25-30 years and he has the bedside manners of an angel and anything we have needed him for … his answers and his logic and his medical explanations have never been disappointing.
But how can someone really know if the Veterinarian they have chosen (or have been pleased with many years) is on the ball with EVERYTHING? This is really a rhetorical question for obvious reasons.
We have had our Golden a little over 6 1/2 years and we had been to 3 other Veterinarians prior to finding our current veterinarian. He was able to help her with a big problem several years ago when everyone else (including ourselves and service dog personnel and the three other veterinarians) were at a loss. But that is another topic/medical problem.
When we went to get our Golden’s stitches removed last week from her recent surgery (removing what was LATER found out to be mast cell tumor - grade 3) I asked him if he had ever heard of giving an injection of Benadryl prior to a surgery on a potential mast cell cancer tumor. It was a chaotic day and neither my husband or I remember his response! He responded right away without hesitation but I can’t remember a thing he said. I have a “feeling” that he MAY have been ‘baffling us with bullsh*t’ but I can’t say for sure now. And, of course, NOW it doesn’t matter as it was not done.
Unfortunately, I think many of us find ourselves in a predicament whereby a certain condition comes up with our beloved pets and THAT is when one finds out if their veterinarian “is totally on the ball.” Unfortunately so. Perhaps that could be another topic — the list of a thousand questions you should ask your veterinarian before choosing him or her as your veterinarian!
The list of potential problems/conditions is ongoing and that poses a problem when it does comes to choosing a veterinarian as well as where someone lives. That is one reason why I like the program MYSTERY DIAGNOSES (for humans) because people find themselves going from doctor to doctor to doctor for years on end before finding the problem. And sometimes the problems the conditions are SO RARE that it may take one doctor in 10,000 that is familiar with THAT certain condition. Been there, done that with myself and “syringomyelia”. Took 4 years for my diagnoses. And a great percentage of those people, including myself, had to diagnose themselves!
The myriad of symptoms also propose a problem and OFTEN throws doctors off. One recent medical condition that I saw on that program was so rare that the blood test to confirm it was only done in another country (I think it was Switzerland)!
So, our veterinarian is very good but NOW, we see, is not perfect. When he called us with the grave diagnosis he also told us that further surgeries or treatments would not help at this point. We most assuredly agree and would not allow further surgeries had he suggested any. And then, many folks like ourselves, do not have thousands of dollars to spend on treatments that may only give her five more months (as an example). Quality of life over quantity of life again. A dog can become a research animal with the best of intentions but certain choices may put the dog through too much and then the dog passes away only months later anyway.
Dr. Dressler … You were very fortunate to be able to go to Cornell. And I am from, and used to live, only about 45 minutes away from there.
It is one of the best colleges especially for veterinary medicine. And it most definitely sounds like you have more than a vested interest in everything you can find out beyond schooling. But, for the rest of us, how to find more “Dr. Dressler’s” is surely not an easy task!
Thank you,
Lori Michaelson
August 22nd, 2008 at 5:33 pm
Lori, thanks for the compliment! About your vet: we are all doing the best we can, and we are all human beings with our limitations, including me, you, and your vet. It is really for anyone easy to look back in retrospect and note what could have been done better…BUT..mast cell tumors are known as “The Great Imitators”. They have a variety of looks, sometimes amazingly so. So don’t let the fact that this mass was not diagnosed as a mast cell tumor ruin your confidence in your vet.
Having said that, there are very few vets who are spending the time and energy doing what I am doing. It is not that I am so great or went to Cornell or anything like that…rather I have devoted myself to the area of “outside the box” treatments that withstand a scientific critique, in the hope that we will be able to do better in the future with cancer than we have in the past (rather dismally in conventional medicine). I know it can be done, and I promise I will succeed in this given enough time. It is just a matter of looking and avoiding “condemnation prior to investigation.”
So, there will be inexpensive suggestions and more in this blog, and in upcoming projects. Although I am no longer in your area, you will have access to what I have to offer!
In summary, do not forget all the healing your vet has provided your pets with. I hope the the information in dogcancervet.com and dogcancerblog.com will continue to help both you and your vet help with your dog’s cancer.
August 23rd, 2008 at 2:00 pm
I think, but am not certain, that our veterinarian described Brandy’s skin growth on her underbelly in very much the same way you did. Even though I know he is an experienced veterinarian… I felt I had to ask him if he had seen anything similar after his close examination prior to surgery. And I was very pleased with his answers although his first educated guess was that it was probably nothing.
I know there are many many wonderful veterinarians out there and I DO include ours as one of them.
My long post was really to help so many of us know if our “Vet is on the ball.” I now do not know if HAD HE given Brandy a Benadryl injection (just to be safe) prior to surgery — could it have saved her many many more months or years? Something we will never know.
In other words, I guess sometimes it does come down to responsible pet owners to find out as much as they can about ANY conditions. As well as to keep the closest eyes you have on your beloved pet.
Brandy was our first Golden and I remember doing all kinds of Internet research for information on them. Right away I found out that they were more prone to hip dysplasia. But she was not yet two years old yet and I was hoping she would not acquire it. Not so lucky. One morning she tried to get up and walk and she “froze” — scaring us greatly. And THEN finding the diagnosis that she did have it. Very early on.
Cancer was the very last thing we would have been thinking of even during her later years. Yet we had to find out the hard way. *sigh*. I had NEVER come across this type of cancer in all that I have read. But I know now!
A big thanks to you and Rochelle!
And now… OUR household dilemma described in the Omega-3 vs Krill oil thread!
Lori Michaelson
August 29th, 2008 at 8:46 pm
Hi Dr. Dressler,
I finally found you! I have been scouring the Internet as well, for information on Grade III Mast Cell Tumors, undifferentiated for my 9 year old black lab. I have read some journal articles and other sites, but I was looking for someone like you who was posting their clinical experience because I do not feel like I get the whole picture from my vet. I also read Lori’s response and commend her on her treatment decisions. Lena’s tumor was found on her left flank, about the size of a silver dollar. The vet did not prophylactically treat her with Benadryl either. The margins came back clear except for one tiny area that was superficial on one lateral border. We had it re-excised to get clear margins, but FedEx lost the sample. I was devastated!!!!!! Her subsequent diagnostic exams have not shown spread to thorax, abdomen, or buffy coat blood smear. But the vet recommended Vinblastine 1.76 mg (she weighs 58 pounds) once a week for four weeks, then every other week for four more treatments, and 40mg of Prednisone for one week and then taper with chemo. She had her first treatment 8/27/08. Now her butt smells like a chemical dump. I am extremely worried about whether I am doing the right thing. She looks like the picture of health as well, great energy, great coat, great appetite. Would you recommend asking my vet about CCNU, cimetidine, and the triamcinolone injections as well? I know the prognosis is horrible, but I did find some research reporting that dogs have survived for quite some time with that Vinblastine/Prednisone treatment protocol. And that they tolerate Vinblastine all right. My husband and I do not have kids, we are both 40, and she really is like one to us. I just started medical school this week and am having a very hard time concentrating on that while I try to figure out the best thing for Lena. Any advice that you could possibly share with me would be much appreciated. And I plan to visit your blog often. Thank you so much for putting this information out there for us. It will make a difference in our pet’s life and many others I believe.
Sincerely, Julia
August 30th, 2008 at 3:28 pm
Hi Julia,
I am sorry to hear this bad news. Grade 3 MCT are not good. BUT there are some things to consider:
First, consider MDR-1 mutation testing. See the next blog. Rarely a problem in Labs but if you want to be extra extra extra safe get it done.
Second, DEFINITELY discuss cimetidine and triamcinolone acetonide infusions. Print out the blog for dosing. The triamcinolone also can decrease the oral pred requirements.
Third: other things! There is tons of unsound advice out there that has not been really checked out for safety and/or benefit. Here are some things that have:
Ask your vet about ND commercial food, shown to extend life by itself in lympho dogs (without other treatment) by median 6 months, which is solid.
IF No ND, then please research and consider implementation of the following AFTER consulting with your vet or oncologist for precautions (presented for information only but not recommendations for your dog):
a.go low carb, high fat, moderate protein diet. Cancers love carbs. Change foods very slowly by mixing with regular food over 2 weeks to stave off diarrhea.
b.Add fish oil or krill oil (I like krill) up to about 18 caps per day. Introduce slowly and work your way up, also over 2 weeks. Some oncologists don’t like the antioxidants in some of these in the astaxanthin found therein during chemotherapy…a theoretical concern but discuss with your vet.
c. A vitamin supplement, normal doses. DO NOT load up on antioxidants but maintenance antioxidant have been shown to lessen toxicity of chemo without decreasing efficacy.
Regardless of diet, also learn about:
Beta Glucans (see K-9 Immunity), non specific immune stimulator, seems to help with survival times in my experience.
Melatonin, AT NIGHT. Total darkness at night. Anticancer effect documented very well, almost totally ignored in vet med.
EGCG (epigallocatechin gallate) daily (check out Teavigo). Anticancer effect documented, also almost totally unknown in vet med except one rediculous toxicity paper using 200X standard human doses where they killed a bunch of beagles. Disgusting.
Luteolin, multiple documented anticancer effects.
JUVEN, mixed in cottage cheese especially if your dog starts losing weight.
Modified citrus pectin. Antimetastasis effect by receptor blocking documented, also unknown in vet med(okay, you get the idea..)
Curcumin mixed in lecithin for absorption through intestinal wall, start slow, work your way up to full dose over 2 weeks. Can make stool yellow.
Start fresh ginger, 1 teaspoon peeled and chopped, daily in food for nausea and mild immune stim, also mild pro-apoptosis effect in cancer cells.
Direct sunlight, for black dogs about 1-2 hours twice weekly to boost active Vit D3 (don’t bother with oral, can’t get high enough levels), don’t overheat your dog.
Excercise, train, build your dog’s self esteem, stimulate and interact with your dog a lot.
There are gobs of other things but that should get your teeth in something.
Best,
Dr D
August 30th, 2008 at 8:21 pm
Thanks for all that wonderful information. I will print and discuss with my vet. I truly appreciate it. Once again you are doing a wonderful service for all of us out here. I look forward to more of your blogs.
August 31st, 2008 at 11:02 am
Hello, Dr. Dressler
I just learned a couple of days ago that the bump on the muzzle of my 8 year old male dachshund is a mast cell tumor. This was determined after an aspiration taken by our vet. The bump, which as been there for up to a year or so, has recently gotten a little larger and does seem to swell/shrink a bit. This bump is on the upper right side of his muzzle and is now about the size of a dime, but initially was the size of a bug/mosquito bite (about a year ago.) It has not changed size over the past 3 months, give or take. Having read other accounts, this sounds like a slow rate of spread to me.
He is a very healthy dog who joins me regularly for 4+ mile hikes and/or runs in steep terrain and I have observed no other drastic signs or symptoms in his behavior. I have noticed that he has had occasional scratching episodes when no fleas or other skin irritants are present, but these are short lived and not severe ( ie no self mutilation). I understand now this could be related to the release of histamines associated with the tumor. This symptom has been present for about a year or more, but doesn’t occur often. I plan to treat this with 1mg of Benadryl/per 1 lb of body weight if it reappears.
So the vet is telling me that the recommended procedure for this is to remove the tumor, but that it will be very difficult to get good margins. Moreover, she says that my dog may be quite disfigured after the surgery (not just scarred but disfigured!) She also stressed that there are no guarantees that this tumor has not metastasized, which would render the procedure pointless. Moreover, it is not known at this point if the tumor is indeed malignant.
I read on another site that mast cell tumors that have been around several months without significant growth are often benign. What’s your take on that? Part of my dilemma is that I would hate to put my dog through the stress associated with this procedure, and remove part of his nose when it may be unnecessary, or may not even stop the spread of the cancer. And if the tumor is malignant, what kind of quality of life is he going to have after such a procedure? It seems to me that he’s perfectly OK - strong appetite, appropriate weight, good temperament and great stamina, etc, and that has been unchanged over the past year.
I recognize the real challenge here is the location of the tumor and whether or not the entire tumor and margins can be removed. Are there any alternative methods of treatment you might recommend that are less invasive?
Are there any key follow up questions I should ask my vet about his prognosis? Is there more information or data that can be analyzed from lab tests that show the grade or severity of the tumor? What kind of nerve damage or other impact on his olfactory senses could be caused by the procedure?
Based on what information I have, and the signs/symptoms present, I am leaning towards riding this out without surgical removal of the tumor. It just seems like a big gamble for something that might not require such drastic measures or prove ineffective. If I thought that this procedure would cure him, but still leave him disfigured, then I would do it. But that question cannot be answered.
Any help or insight would be greatly appreciated. Thanks for your time.
September 1st, 2008 at 3:57 pm
Hi Matt
Okay, here’s the scoop:
1. All mast cell tumors have the potential to be malignant, although grade 2 and 3 (especially 3) are bad stuff. Grade 1 and only some Grade 2’s have a tendency to be benign, especially grade 1. You can’t diagnose grade on an aspirate. So if you have a little cash, get a biopsy done. Small piece gets send to the lab, no disfiguring, can be done under deep sedation with a little local block of lidocaine, bada bing, there’s the info you need on grade to make a smart decision. Have the DVM give a benadryl inj. first.
2. Your dog is acting fine- great! Problem: once the little one is not acting fine due to mast cell metastasis, you just sealed his fate to a yucky death which can be postponed with some of the stuff I talk about but…so behavior is a JUNK indicator of the severity of the malignant potential of a mass. Sorry, but that is the truth.
3. Please research and discuss with your vet the following for your dog:
Intralesional acemannan injections
Intralesional triamcinolone injections
These are shots right into the tumor which can help it shrink. No disfiguring, can be done under sedation or if the dog is compliant and sturdy, sometimes without even that. There is a ton of other stuff to consider as well (see this thread for some generic suggestions)
Let me know if you need other help.
Thanks!
Dr D
September 1st, 2008 at 6:58 pm
Thanks so much, Dr. Dressler!
I will be heading back to the vet this week to have him looked at again, likely get the biopsy done, and discuss your suggestions. I am also not very far from UC Davis and my pet sitter recommended I tap into that resource as well.
As I get more information, I will return to post the information in hopes of helping others out there.
thanks again…Matt
September 2nd, 2008 at 4:23 pm
Matt, try to call first. That way they can block off the 15-30 min needed for the biopsy and you can do it in a single trip (recheck first, next biopsy) Don’t forget to fast your dog that morning (you don’t want any surgery done on an empty stomach if possible).
Best,
Dr D
September 10th, 2008 at 6:25 am
Hello, Dr. Dressler:
My 6 year old Boston Terrier just had a number of small masses removed, several identified by needle aspirate as MST. Our onocologist recommended fametidine (5mg for an 11kg dog).
What are your thoughts on Cimetidine versus Fametidine?
My brief lit review of available journals seemed to indicate that the inhibiting factors found in Cimetidine are not present in other H2 blockers. Would you advise asking my onocolgist about switching my dog over to Cimetidine? Or are there other factors that might preferentially indicate fametidine?
Thanks so much,
Chris
September 13th, 2008 at 6:18 am
Chris,
I would most definitely ask your oncologist to consider cimetidine. Your findings parallel my own, which are that the other H2 blockers lack the anti-cancer effects of cimetidine. By the way, are you working with a veterinary oncologist or a veterinarian?
Cimetidine, like other drugs, needs to be considered in conjunction with whatever other treatments are provided to your dog and his or her individual needs.
Best,
Dr Dressler
September 19th, 2008 at 6:38 am
Dr. Dressler,
My dog is under the supervision of the Onocology team at the University of Florida’s Small Animal Hospital (Lucky for both my furry child and I, we live in the area).
The histopath results for my dog’s masses came back quite good. Of 12 masses removed, only 5 were MST. 3 were Grade 1, excised with clean margins. 2 were graded as low Grade 2, excised with clean margins. The onocologist recommended discontinuing any H2 blockers for the time being.
However, I went ahead and ordered a number of supplements to help my little boy along. He’s been taking 1000mg of purified fish oil daily (which seems to be the indicated dosage, from what I’ve been able to cobble together, for an 11kg canine). The Oncologist indicated that this was a good treatment option, as eha/dha have a number of concurrent health benefits beyond MST “starvation.” In addition, I now have a 99% decaffeinated EGCG supplement (4mg total caffeine content per softgel), and I’m going to start him on 200mg twice a day. I also ordered softgels of 750mg curcumin extract. My read is that 375mg 2x daily is about the right dosage for his size and weight.
Even our Oncologists was not aware of the recent literature on EGCG and Curcumin. I sent them links to a few selected articles (PubMed).
I’m feeling good about both my Boston’s prognosis, and the combination of supplements I have arrayed for him. I am curious, however, if I have the dosage right. I know I’m not at a level where toxicity would be an issue, but I would like to know if there is any other literature out there re: the proper dosing.
September 19th, 2008 at 7:11 am
Just an addendum:
For both the curcumin and EGCG, I made sure to find reputable vegetarian formulas (as they contain no sugar, salt, starch, yeast, wheat, gluten, corn, soy, milk, egg or preservatives).
The Curcumin supplement I am going to use contains:
Total Curcuminoids 665 mg {from 700 mg of Standardized Turmeric Root Extract (Curcuma longaL.} (Min. 95.0% Curcuminoids (containing Curcumin, Demethoxycurcumin and Bisdemethoxycurcumin)}
The EGCG supplement contains the following:
KEY INGREDIENT(S): Green tea extract (Camellia sinensis) 400 mg
Total EGCg content: 50% (200 mg.) (Epigallocatechin gallate, a Catechin) # Total Catechins content: 80% (by HPLC method) (Catechins are a form of Polyphenol) # Total Polyphenols content: 98% (by UV method)
Less than 1% caffeine content, naturally occurring (versus one cup of green tea’s roughly 40 mg. of caffeine). There should be only around 3 mg. of caffeine, per capsule.
September 21st, 2008 at 4:06 pm
Chris, there are no published doses in dogs for any of these. But I will give you my opinion on what you wrote:
1. The dose of EGCG is way too high for a Boston. I would give about 125 mg of EGCG daily for a large dog. You have 400 mg daily for a dog about 1/4 of this size. I think that is way. I would give 25-50 mg, once daily, on an empty stomach (or with as little food as you can).
2. I also think the dose of Curcumin is high also. An average supplement dose for a human is about, very roughly and depending on manufacturer, 250-500 mg daily of Curcumin itself. If you assume a 150 lb human, the supplement dose (antioxidant dose, which true is too low but just FYI) for a 25 lb dog is 1/6 that amount, or roughly 45-85 mg daily. You are proposing giving 750 mg of curcuminoids daily. Okay, true, most of this stuff will get passes in the feces, but…even so, seems pretty high to me. Why don’t you give 1/2 of the capsule you ordered daily mixed in soy lecithin, which you can get from the health food store. Use a turkey baster of a syringe from your oncologist to dose your dog. Give on an empty stomach please.
Get their input and approval before doing this so you can be sure everything is okay before starting (sounds like you are doing so..)!!
Sounds like you are working on getting the oncologists up to speed on cancer treatment beyond surgery, chemo and radiation!! Nice!
Glad to hear no grade 3, but keep on those tumor sites regardless, as sometimes (rarely) the grade does not always indicate tumor behavior..
“Good on you” for taking the time to be your dog’s health advocate!!
Dr D
September 24th, 2008 at 10:43 am
Dr. Dressler,
Thank you so much for the advice. Your dosing instructions are right on, I believe. Immediately after my last post, I actually sat down and did a second set of calculations, decided that I would give my dog roughly 75mg of EGCG and 100mg of curcumin. I ran this past our Oncologist, and she, while issuing the disclaimer that I was operating outside her realm of expertise, did not see any issues with the 75mg EGCG and 100mg curcumin dosing.
With your input, however, I’ll now lower it even more to the levels you have advised.
Again, thank you so much for the advice.
September 24th, 2008 at 3:11 pm
Yay!!
Good!
Again, don’t forget the soy lecithin for curcumin absorption enhancement..
D
September 30th, 2008 at 9:19 pm
Hey Dr.Dressler!
Many thanks for the information you have out here. It is incredibly helpful to get as much data as possible, I really appreciate the effort you’re putting into this blog.
My dog Vodka (yellow lab, male, 9.5 years) has been diagnosed with MCTs - one of the masses on his shoulder seems to have penetrated the lymph. We started him on chemo (Vinblastine) and he’s responded really well. We switched him to CCNU last week and are hoping to get the mass reduced to a small enough size, so that radiation therapy can be done. Do you have any input on doing radiation versus surgery to remove the mass/lymph node? Is one option better than the other?
Regarding supplements and food, the details of Vodka’s meals are on his blog. Basically, we’ve switched to giving him meat+salmon+Innova Evo kibbles along with a slew of supplements (K-9 Immunity, Transfer Factor, Curcumin, medicinal mushrooms, probiotics, salmon and fish oils, H1 and H2 blockers, chinese herbs, Artemin, Avemar).
Thx!
-K
October 1st, 2008 at 11:29 pm
You are welcome!
Hm. If a mast cell tumor is in the lymphatics, it is likely in the body…I believe based on what you wrote that your oncologist likely does not want to do surgery because the cells are already in the body, and if one is doing surgery one of the main goals is getting the cancer out of the body (or debulking the growth because it is a problem based on size, getting infected, etc). So perhaps that is why they are choosing radiation instead of surgery at this stage- getting the cells out is not likely since they have spread..although without a bit more info I cannot give you a certain answer.
Hope that helps!
Dr D
October 3rd, 2008 at 9:08 am
Hey Dr.D!
Thanks for the input.
Obviously, the chemo+steroids+supplements is helping right now. And we’re hoping the radiation will make things better. The good thing is that his blood panels, enzymes and ultrasound are all clean, as are his internal organs. That’s why we were wondering if surgery could be an option if the MCT was localized to the lymph - is that even possible?
So, do you have any recommendations on what else we can do here to keep Vodka healthy for as long as we can?
Thx!
-K
October 3rd, 2008 at 1:21 pm
Krishna, answer to mast cell tumor within a lymph node (and likely lymphatics): The lymphatics are a circulatory system, like blood. When cancer cells are within lymph nodes, there is a pretty high probability they are in the body, circulating in lymphatics…but as micrometastasis, which are hard to pick up because they are just cells imbedded in places they should not be, or circulating, not doing much…but later they pop up as cancer metatstases.
I believe, although I cannot be sure, that that is why they suggest radiation instead of surgery at this time.
October 6th, 2008 at 6:44 am
Dear Dr. Dressler,
Our 6 year old Schnauzer Benny was diagnosed with MCT in November 2007. A small lump appeared on his right side in May 2006 and was recognized by the vet and nothing was done. It grew and nothing was done! Then it was biopsied in November 2007 and removed the following day. The pathology report came back as Stake 2 MCT.Almost a year later, in June he was given a \”clean bill of health\” but the tumors returned ( 2 small ones ) in the same area in August of 2008. No surgery, chemo or radiation was recommended.
Now we are \”flying by the seat of our pants\” and reading everything possible ro try and extend the life of this wonderful pup.
After researching MUCH, we are purchasing CANINE LIFE muffins (cancer recipe) from BARK & FITZ. These were approved by the Veterinary Hospital in Guelph ON, CANADA. Along with this Benny gets 1000mg. salmon pill per day, i modified citrus pectin pill, flaxseed oil with pressed cottage cheese ( 1/4 cup) once a day. To his evening \”muffin meal\” we add a small amount of his HILLS DIET DRY rd dog food and a little steamed broccoli. He also gets shitake mushrooms twice weekly, chicken with turmeric and a little canned tomato and sometimes a little chicken liver,Essiac tea (1 ounce twice daily) and lots of love. We purchase organic meats and broccoli and wash the vegetable well before steaming.
He is energetic and appears healthy and happy and loves his food and his walks twice a day.
However, he is very itchy and although Benadryl helps to ease the itching, it makes him constipated. could you suggest another treatment. Our vet is not at all helpful and has more or less \”given up\” on Benny. We are not going to do that. Please help us if you can.
Sincerely,
Joanne
October 7th, 2008 at 8:40 am
Dear Dr. Dressler,
I see that your expertise is with dogs but I was wondering if you would be able to comment on possible treatments for a cat who recently had surgery for a malignant rectal mast cell tumor (it was just inside the rectum, not far). My cat is an 8 year old male, neutered, domestic mix although possibly half Russian Blue. He\’s always been a very active and energetic cat, his diet is both canned (Wellness brand) and dry kibble (Nutro natural). Prior to the discovery of the growth and subsequent surgery, he had no symptoms. The tumor was found incidentally while our regular vet was expressing his anal glands during an routine office visit. He had surgery 4 weeks ago and the pathology came back saying that the growth was a malignant mast cell tumor. (He recovered just fine from the surgery and his back to his old normal self.) We had a consultation with an oncologist vet last week who wants to do an ultrasound, re-tested his blood (all normal, no mast cells floating around) and has suggested radiation therapy or possibly chemo with CCNU (lomustine). My questions are these:
1. Is ultrasound the best diagnostic imaging for small animals to check for other tumors that might be inside or should they be doing an MRI, CT or X-Ray?
2. Assuming no other tumors are found, is radiation therapy the best first choice for this type of tumor, since there was no way they could excise it to clean margins, or would chemo be a better choice? (I can\’t imagine getting my cat into the carrier and to their clinic 3x a week for 5 weeks plus subjecting him to anesthesia each time.) I\’m not sure how effective radiation would be, plus the possibility that the tissue in that area could become scarred, painful and interfere with proper defecation.
3. Should I adjust his diet to exclude foods with grains?
4. Should I add any supplements such as curcumin, which I had been reading about earlier before I found your site here?
5. Do you know someone who is an expert on this in cats that you could point me to? There is so little information or studies done on visceral MCT\’s in cats (especially rectal) it\’s very difficult to know what the best course of treatment is
.
Thank you.
Jessica
October 16th, 2008 at 4:17 pm
I need some help !
My 3 year old Weimaraner had what looked like a wart , to me, about the size of a pencil eraser, on his docked tail. I took him to our country vet and he removed it and I had him biopsy it. It came back MCT grade 2. I had never even heard of this and had no idea how serious this was untill I began researching on the net. My local country vet left me hanging high and dry, with no answers to my questions, nor could he even give me a name of anyone locally to treat this or get any information. The said the closest hospital was about 5 hours away.
I started making phone calls and did find a local clinic that has an internal medicine/oncology vet come in as needed. I met with him and he did a buffy coat and CBC/Chem 12 and everything came back normal. I do not have the money for everything that he suggested, stagging, vinblastine and CCNU.
He recommended doing just the CCNU. I asked him about the intralesional triamcinolone and he said that was only if the tumor was not removed. I asked him about other things that I have read about, such as, Cimetidine, EGCG, Curcumin and he has never heard of these. I\’m not getting much reponse about diet either. He told me to keep him on the Iams that he is on now.
I had heard from a gal who works in a vets office ( from a message board that I posted on) and she said that they have had good results with prednisone alone. I asked my vet today about this and he said if you use that in itself that the chemo drugs will not be affective down the road if needed.
I am so confused ! It\’s hard for me to even find the CCNU. ( I have to find a pharmacy myself ) I am just so worried I\’m not doing what I can for my dog. From what I read, there\’s a 40% chance that this won\’t spread, but do I take that chance? If I do the CCNU, will it ruin his quality of life, for whatever time he may have ? He has no signs of being ill. Will this drug make him sick or even help him ?
I guess is what I\’m asking is….what is my best path to take? Like I said, I am not wealthy and cannot spend thousands. The CCNU and office visits will be over $2,000. That\’s all I can do. Have you had success with CCNU alone or does this prolong his life for a few months? Will it make him terribly ill ?
Any advice will be greatly appreciated.
October 16th, 2008 at 5:02 pm
The recommended treatment for grade 2 mast cell tumors is wide excision. That means wide margins (a lot of tissue removed…hopefully 1-1.5 inches on all sides approximately. Although the malignant potential of grade 2 MCT’s can be malignant, some are not. Try to get a wide excision done, that, in my opinion, is the best use of your dollars. Get the cells out of the dog.
Oncologists have not researched the information on this blog. It might be illuminating printing the abstracts on the links I provide for his or her review…it can help everyone involved. He/she should almost definitely have heard of cimetidine (as most everyone has…it is Tagamet, a common over the counter med).
October 20th, 2008 at 12:59 pm
Dear Dr. Dressler:
My 11 year old mixed breed spay female, Mommy\’s Baby, had a lump removed from her left vulvar lip 12 days ago. According to the pathology report, it was one lesion, four months duration, slow growth rate, excised. The biopsy of the mass was the entire specimen 1 x 1×1cm. There was no lymph node involvement. It was rated as a canine mast cell tumor grade 3 with a mitotic index of 1. The mitotic figures are frequent and many atypical. There were no neoplastic cells seen at the surgical margin. (It helps having the report in front of me!)
From what I am reading, I am not encourged by the grade of 3, but can I be encouraged by the fact that it appears when the mass was removed, they were able to take enough to show clean margins?
I can also tell by the report that the cells in the tumor were showing signs of still harboring the cancer.
She is the best dog in the world (to me anyway) and I will try anything to keep her with me longer, but given her age and advancing arthritis, I am also concerned about her quality of life.
She takes Deramaxx, Flaxseed oil, melatonin, Vitamin E, glucosamine and chondroitin plus msm and Proin.
Would the prednisone be a place to start to slow the metastatic rate?
Should I ask my vet about blood work? Would that be a way to tell if it may have spread already?
Since recurrence at the surgery site is common, is there anything in particular I should be looking for?
She is still her happy, hungry self..even loving going to the vet to get her stitches out today and home again being a great big sister to our 3 month old kitten!
Thank you for your time!
October 20th, 2008 at 2:56 pm
Cathy,
Your post requires individualized attention as it is too complex. You can contact me directly. What did your vet say? He or she should be addressing many of these concerns.
D
October 31st, 2008 at 7:59 pm
Dear Dr. Dressler,
I was wondering if you could direct me to where I might find information studies of cimetidine versus famotidine for mast cell tumors if you know of any. It seems like cimetidine would be preferable, but my dog is on famotidine as per oncologist prescription. I asked why, and was told that theoratically cimitidine may have an undesirable immunostimulant action in the case of mast cell tumors. I understand that mast cells are part of the immune system, but it does not seem like cimetidine would necessarily stimulate the mast cells, since it acts on lymphocytes.
There is probably no definite answer, but is stimulating the immune system bad for mast cell disease given that the cancerous mast cells are no longer normal immune system cells anyway? Can you shed some light on this dilemma?
Also, do you know of any studies or other info on the interactions between medicinal mushroom extracts/derivatives and chemotherapy drugs? Or between omega-3\\\\\\\’s, antioxidant vitamins and chemotherapy drugs? Or the effects CAM on mast cell tumors? Not being a scientist I don\\\\\\\’t know, do compounds that stimulate T cells, as with mushrooms, necessarily stimulate mast cells?
Is there any conventional treatment I\\\\\\\’m missing, that I should ask his vets about? I see where you discuss intralesional triamcinolone, maybe that could be done on the inguinal tumor, but it can\\\\\\\’t be used in an organ like the spleen, right?
My 11 yr old Lab was recently diagnosed with systematic mast cell disease, after having a small grade 2 removed with clean margins a year ago, there was no other treatment done at that time, regrettably. I guess I thought that if it recurred it would be another localized skin tumor, but now he has an under the skin inguinal tumor, numorous dispersed skin tumors, and spleen involvement. No noticable effect on his daily life yet though. He is getting benadryl, famotidine, prednisone, vinblastine, and lomustine. His current vets (WSU) did not suggest surgery or radiation, I guess because of the locations/ extent. Obviously, bleak even with the chemo since its doesn\\\\\\\’t work that well without surgery.
I would like to do complementary supplements, but I don\\\\\\\’t know and the vets here do not know for sure what will antagonize the chemo treatments, which I definitely don\\\\\\\’t want to do. One has said no problem on the antioxidants, the other says none the day before, day of, or day after the treatments. Neither knows about mushroom compounds except to say that if they stimulate the immune system they could be detrimental. I am having a terrible time trying to find credible studies on the interactions of conventional and complementary medicine, maybe there just aren\\\\\\\’t any or maybe I don\\\\\\\’t know where to look.
I know I\\\\\\\’m basically asking for a mini-course in veterinarian oncology and CAM, but any insight would be appreciated.
Thank you.
November 1st, 2008 at 11:21 am
1. There are no studies I am aware of showing that neoplastic mast cells respond to stimulation either by beta glucans or by cimetidine.
2. The medicinal mushrooms as a group tend to protect against side effects of chemotherapy. More specifically cordyceps protects against marrow suppression from cyclophosphamide and nephrotoxicity from other agents. Do a search for cordyceps and colony stimulating factor in the bone marrow and nephrotoxicity. There are also links in the medicinal mushrooms blog you should read.
3. Intralesional triamcinolone is for MCT of the skin/subcutis, not spleen, correct.
4. “Antioxidants” is a huge area and is hugely oversimplified in conventional veterinary thinking. Read the blog post on it, and also the one on ozone for some supplemental info. I will do another one soon to help with people’s general understanding.
Other than that, try to read the blog posts one by one. I have a book coming soon too that tries to do exactly what you are requesting.
D
November 5th, 2008 at 4:18 pm
Hi Dr Dressler,
My 21 week old Siberian Husky was diagnosed with grade 3 MCT when she was 17 weeks old. She is currently under the care of Dr Bill Rogers at Massey University Vet Training Hospital here in Palmerston North, New Zealand. Mystik is currently on daily pred and weekly chemo. She is responding extremely well and we are hopeful for a positive outcome for her.
Surgery for Mystik is not an option at this stage due to the location of the tumour. The idea is to shrink it to a size where removal will not cause her disfigurement. The tumour is situated in the part between her nose and top lip.
I have scoured for information and just today came across your website. What a great wealth of knowledge and I thank you for it.
Regards
Nardine
November 5th, 2008 at 8:55 pm
Thanks so much,
Dr D
November 19th, 2008 at 4:11 pm
My 10 year old lab-mix (has features of a lab mix and vet thinks so, but DNA test says rotterman) was diagnosed with grade 3 MCT in his mouth 7 months ago, no signs of it anywhere else, but could not get enough of tumor to get clean margins with surgery. 6 months of chemo led to clean bill of health. 2 months later, same spot in the mouth the tumor is back, much smaller, but still grade 3. Sounds like radiation is being recommended followed by more chemo. Does this make sense for a large dog who is this old? Will he spend the rest of the time he has left going every week for some treatment or another? If we don’t go there, is there anything else we can do to prolong his life? Our oncologist did not offer any dietary / supplement suggestions. (BTW, prednisone leads to bad incontinence.)
P.S. I am a CU Engineering grad and my husband a CU Engineering MS. I miss the rolling hills far above…
November 20th, 2008 at 2:51 pm
Marti,
I am sorry to hear this bad news. It is all too common.
please check out the latest blog entries on radiation and the previous one on life quality.
Also do a search on luteolin. Key words luteolin, mast cell stabilization, and cancer, etc. You should look into Lutimax which contains luteolin.
You should be thinking about intralesional triamcinolone, cimetidine, carb restriction, and all the rest of it. Honestly, it would benefit you and yours to just start reading this blog from the beginning….lots to talk about!!
Go Big Red!
Best,
November 21st, 2008 at 9:04 am
Hi again,
Mystik has been responding extremely well to the pred and has to date only had 2 chemo treatments. She will have 2 weekly checkups at this stage and will continue on daily pred until further notice. I have completely removed processed food from her diet and am feeding her raw. Sourcing raw is somewhat of a mission but here in NZ we do have K9 Natural (raw meat with no grains) and mightymix (raw meat and fats with some grains). Her CBC 10 days ago was great and she had 1 mast cell in the lesion. It was the first time I’d been given numbers so to hear that was just fantastic. Just thought I’d give an update.
Cheers
Nardine
November 22nd, 2008 at 12:08 pm
Great to hear good news!
D
November 25th, 2008 at 11:40 pm
Hi again,
Mystik had a checkup at Massey today and prednisone was injected into
what is left of the lesion. Her tests 3 weeks ago showed 4 mast cells in the
lesion and zero in her lymph node. 2 weeks ago there was 1 mast cell in
the lesion and still zero in the lymph node. Today she has absolutely
no mast cells in the lesion!!
Mystik will have another checkup in 2 weeks time and tests will be done
again to ascertain where she is at and treatment will be discussed if
need be.
I am relieved and so inspired by her spirit. She truly is a legend and
what has happened has made me believe in miracles.
Regards
Nardine
December 2nd, 2008 at 2:57 pm
My vet doesn’t want to upset my dog’s system right now by changing his diet prior to radiation, but she was willing to consider the luteolin after I gave her some links from some research I did online. However, I could not find anything about dosing info, and this was new info for her. He ways approximately 65 pounds. Any advice?
He takes benadryl twice a day andhas been getting dermcaps forever due to skin dryness and allergies, so I don’t think that he would need a new fish oil supplement. When he was undergoing chemo, she put him on famotadine instead of cimetidine. What is it that the latter offers, that the former does not, and is there any research to document this? She had us take him off of the famotadine once we stopped with the chemo. Should we request that he start back up with the cimetidine? She didn’t tell us the protocol yet, so that may be part of it.
I’m concerned, mostly because of his age, that she wants him to undergo radiation 5 days a week every week for a month. Doesn’t that seem like an awful lot? It will be in a small area just around his lip where the tumor appeared / reappeared, but still.
December 2nd, 2008 at 2:58 pm
I can’t believe my stupid typo - ways not weighs. Don’t tell anyone at Cornell.
December 6th, 2008 at 5:08 pm
Dr. Dressler,
Please give me some advice. My dachshund was just diagnosed with a mast cell tumor by his anus. I went to a surgeon on the vet\\\’s advice and she said she wouldn\\\’t be able to get much of a margin because of its location. And he would possibly be fecally incontinent.
I asked the vet about using prednisone to shrink it some. (it\\\’s about 1 cm). She said prednisone doesn\\\’t work well with mast cell tumors. She said surgery is the best option.
Is there any alternative to help him? He\\\’s healthy otherwise, but this week I see that pooping seems to be harder for him.
What else can be done for this boy? I just lost my other dog recently–she was older and had kidney failure. I\\\’m not ready to see him go too.
Thank you,
Marcia
December 6th, 2008 at 5:23 pm
Marcia,
prednisolone is used in mast cell tumor chemo protocols, combined with vinblastine. This is a standard current protocol.
I cannot give recommendations on individual dogs, but:
See above:
intralesional triamcinolone could maybe be an option.
Talk to your vet, maybe a second opinion…
Dr D
December 6th, 2008 at 5:25 pm
Mardi,
there is no published dose in dogs. This is outside the box, extrapolated from humans.
Go to the Lutimax website (SynoRx is the manufacturer) for more info, a good place to start….
Dr D
December 6th, 2008 at 5:40 pm
Thank you very much. I think it would be wise to get a 2nd opinion. I’ll work on that this week.
Have you any experience with surgery going well with those kinds of tumors in the anus area?
December 6th, 2008 at 8:00 pm
Dr. Dressler,
My dog has recently had a Mast Cell Tumor removed from her mouth, just under her tongue. She is now going through radiation treatment and has completed three treatments so far. My doctor is pushing for chemotherapy while we are going through the radiation, but I am hesitant because I had another Oncologist tell me that chemo during radiation can cause some problems. What is your opinion on this?
Also, last Monday I found another lump (about the size of an egg yoke and with the same texture) on her rear right knee. I had it aspirated and the doctor said that it was another MCT because of the amount of Mast Cells that were found in the blood. By Thursday it had disappeared and the surgeon decided not to operate. At the same time all of this has been occurring, the dog has been suffering from one infection after another. First the ears, then the anal glands, salivary gland, and then a bumpy red rash in the pubic region with a few bumps around the area where the “MCT” was supposedly on her knee. Last night I found a flea on her tail (the first flea I have seen in three years.) My question here is, could all of this be caused by a reaction to fleas? Could the “MCT” on her knee really have been a severe reaction to a fleabite? She has had some problems with skin allergies in the past, but has only been exposed to fleas once, about three and a half years ago.
I have noticed that much of the treatment and research for MCT (like other diseases) is concentrated on attacking and defusing the direct threat. In this case it’s the MCT. Has anyone ever looked past the MCT itself, at the correlation between MCT and hyper allergic animals, to see if they are more likely to develop an MCT?
Very Respectfully,
Jon
PS. If I may make a comment from a patients point of view. I have found that doctors and vets are a lot like college professors. Many of them are profoundly great at what they do, but many are also profoundly over confident with their knowledge. Your advice to one of the previous writers was spot on, by telling her to get a second opinion. I have found that the more opinions I get the better, and the more interested the doctor is in my dog, the more honest the treatment for the dog is as well (generally.) In the case of serious disease such as MCT, I have found that it is better to drive a good distance to get the right doctor at the right price, which also seems to be higher with uninterested doctors…
God Bless you and all the Vets that take time out to go the extra mile and answer our questions!
December 9th, 2008 at 5:53 pm
Dr Dressler,
Thank you for creating this blog. My bulldog mix is a happy healthy dog expect for the MCT issue. Her first MCT was on her FL leg, which we had removed with a botched skin graph. This surgery left her leg disfigured and months of recovery. I went to a specialist thinking for sure she was in good hands. Her 2nd MCT appeared on the other front leg just August of this year. This time we went to our local vet and they removed it and got clear margins with a simple incision and quick recovery.
Just the other night I was bathing her and while washing her muzzle I found the 3rd one. Our vet is on maternity leave but they exised it and of course it was a MCT. I asked they give me prednisone and we are giving her benadryl twice a day. Her surgery is scheduled for Dec 26.
My questions are:
1. What questions should I be asking?
2. What are the best grain free allergy sensitive foods on the market?
3. What is the best supplement or combo of supplements to help dogs suffering from recurring MCT’s?
4. Both her prior surgeries she has gotten clean margins. This one on her muzzle concerns me. Should we be approaching this differently?
Thank you, I will try anything as long as she is happy and healthy.
December 9th, 2008 at 5:53 pm
Dr Dressler,
Thank you for creating this blog. My bulldog mix is a happy healthy dog expect for the MCT issue. Her first MCT was on her FL leg, which we had removed with a botched skin graph. This surgery left her leg disfigured and months of recovery. I went to a specialist thinking for sure she was in good hands. Her 2nd MCT appeared on the other front leg just August of this year. This time we went to our local vet and they removed it and got clear margins with a simple incision and quick recovery.
Just the other night I was bathing her and while washing her muzzle I found the 3rd one. Our vet is on maternity leave but they exised it and of course it was a MCT. I asked they give me prednisone and we are giving her benadryl twice a day. Her surgery is scheduled for Dec 26.
My questions are:
1. What questions should I be asking?
2. What are the best grain free allergy sensitive foods on the market?
3. What is the best supplement or combo of supplements to help dogs suffering from recurring MCT’s?
4. Both her prior surgeries she has gotten clean margins. This one on her muzzle concerns me. Should we be approaching this differently?
Thank you, I will try anything as long as she is happy and healthy.
December 11th, 2008 at 9:52 am
Hi again,
Mystik had her final checkup on Wednesday this week. The vet was a bit concerned as her lymph node was slightly enlarged. He said if it was any other dogs than Mystik he wouldn;t have been so worried. FNA was done again on the lymph node and the site where the tumour was and no mast cells to be found. Mystik has pigmentation on the site and looking at her you would never know she had a tumour there. She is happy, healthy and doing really well. Not to jinx her but it appears she is cured from cancer and all from prednisone and 2 doses of vinblastine. A very happy ending to a very scary month or so.
Nardine
December 11th, 2008 at 11:24 am
Jon, there is a bit of a link between MCT and allergic stimulation. I will blog on this in the future.
However, a MCT is not an actual allergic reaction, it is a cancer, as you are aware. They fluctuate in size based on the histamine released within the mass which causes swelling which can then decrease over time.
My personal belief is to stage radiation/chemo, not simultaneously.
D
December 11th, 2008 at 11:29 am
Ashlee,
ask as many questions as you can. The more familiar you are with concepts the better off everyone is. You will also come to appreciate there are limits to our knowledge.
I like luteolin, curcumin, krill oil as a good starting point.
Consider FP food (hills) as one of many options.
D
December 11th, 2008 at 11:49 am
Nardine,
I am glad to hear Mystik is doing well!
D
December 19th, 2008 at 10:32 am
Dr. D,
Finding this blog in the nick of time…Our 1yr 8mo old Boxer (Caesar) had a spot show up on his inner right rear leg. This was removed with clean margins (but no benedryl injection prior) It has been graded as Stage 3. Maybe I’m not coming to grips with reality on this one…survival time seems so low. He is completely healthy acting. We did all the bloodwork, xrays, ultrasounds, and need asperates of speen and liver. Everything “medically” says he is a completely healthy pup. Only problem was this tumor that was removed. It was maybe the size of an eraser head. The vets seem to think that we got it very early, but knowing that it is a Stage 3 and longevity of life on the line is reccommending prednisone and vinblastine. What else can we do for this pup to keep him around awhile. They studied under a UT professor who they are telling me has been part of a clinical trial for a pill (PKI?) Supposedly it is awaiting FDA approval, but has been used overseas for a few years with very positive results. Have you heard of this? Can you give me any advice as far as diet, exercise, daily medical regiment that can increase the chances of survival?
December 19th, 2008 at 10:53 pm
Mattew, first hopefully you can get a second opinion on the path review. You are considering chemo in a 1 year old, with occasional severe side effects that could affect life quality. Make sure you get confirmation of a grade 3.
I cannot give recommendations to individual dog owners.
Research luteolin, which is a bioflavonoid with nice anticancer effects that stabilizes mast cells (Lutimax). Research curcumin, and omega 3 fatty acids like krill oil and or salmon oil. Read previous blog entries about building self esteem and diet.
Good luck,
D
January 8th, 2009 at 10:47 am
Dr Dressler,
Our five and half year old Golden girl has been diagnosed with Grade 2 Mast Cell Sarcoma on her tail, a lump was found and we had it removed with histo being done to see what was the cause,at the time of the lumpectomy she was give an injection of antihistamine prior to the surgery as I requested her surgeon to do, to many years working in a vet clinic has made me concerned about the ‘unknown’ and Mast Cell in particular. My fears were true and Mast Cell Sarcoma, Grade 2 was found. Per recommendation of her vet her tail has been amputed with histo being done and the results came back as clear margins, no cell found. X-rays were done of both chest and abodmen at the time of her surgery to check for ‘mets’ both these x-rays were clear of metsates at this time and as she was spayed at the same time a visiual examine was also done with the liver. Spleen, kidneys and inguinal lymph nodes looking clear and nornmal. She is in otherwise very good health. We have started her on the K9 Immunity/Trans Factor supplements also. She has always been on a Low Carb (currently Taste of the Wild) plus raw diet but I am still wanting to see just what else can be done to keep our girl happy, healthy and with us for a lot more years. Can you give me any suggestions for future treatment/care? I thought I read someplace that there was a blood panel that could be done to show if the Mast Cell was in her blood but can not find any write up on this. I work at a vetenaray clinic and her Doctor is very open to any suggestions and information that I can find. He has said that in the past with his other patients who have had Mast Cell if the margins are good that he has really done nothing and the dogs have done very well and lived good long lives with few if any reoccurances. But I just want to see what others have done? Should we think about Chemotherapy or what treatments, food, supplements, etc with their doggies. And with a prognosis of ‘Gaurded’ it just scares me to think that she could be gone in a short time, it just doesn’t seem possible that one so young could have this problem but then my mind also knows that cancer or any diease does not pick a pet because of it’s age or anything, it just does what it does. Thank you for your time and help with our girl. Shirley
January 11th, 2009 at 8:07 am
Hi Dr. Dressler! Thank you so much for having the most comprehensive source of advice on the internet with personalized and thorough responses.
Like many of the people on here, I am trying to figure out the best way to support my wonderful dog, Fallin– my chocolate lab who recently had a Grade 2 mast cell tumor removed with clean margins (not as wide as they would have liked, but they say they got it all). My vet recommended that I just closely monitor Fallin for tumors to return. However, I hate feeling that it is just a waiting game and there is nothing else that I can do.
I would like to get her on a healthy diet with the appropriate supplements in order to boost her immune system to be proactive and hopefully keep tumors from not coming back. Do you have any suggestions as to a specific diet and supplements to support me on this plight?
I currently bought Blue Buffalo food, which is organic and has more natural products than the dry food I was using before. Before that, I tried to make a homemade, carb free diet (”cancer diet”), but her stomach did not take well to it even when I tried to ween her onto it slowly with the dry food. I also started to give her the Budwig’s protocol that I read about online, which is the organic cottage cheese blended with flax seed oil.
Besides food, I am especially interested in a specific regiment of supplements, vitamins, etc. I have done some searches online, and there is just so much out there that I don’t know where to begin! I don’t want to go crazy and buy everything!!
Could you help with ideas on diet and supplements? Fallin will be 4 years old in April and is around 80 pounds of love! =)
Thanks so much,
Amy
January 11th, 2009 at 3:17 pm
Hi Dr. D,
Rosie’s surgery was good and bad. They were able to get 100% of the cancer on her belly and the MCT on her muzzle did not result in clear margins. We are continuing on benadryl twice a day and prednisone. Our vet suggested CCNU but even after all of my research I am still unsure. Every tumor she has had removed is a grade 2. This is the first that they were unable to get clear margins. Does CCNU help current and prevent new tumors? Is there research on this? Are the risks high? We are also considering K9 immunity but I’m not sure if she is on pred and CCNU if this is too much of an overload?
Any advice would be wonderful. Thank you for this service that you offer.
January 12th, 2009 at 8:36 am
Dear Dr. Dressler,
I have posted twice but I guess I forgot to put in the website that I posted to. At any rate our border collie/shepherd mix, Cassie has a mast cell tumor located on her leg where the hock meets the thigh. Clear margins cannot be achieved and there would be a big hole where the tumor was. She would need a skin flap. The tumor has been graded as a I and I have decided not to put her through the agony of an operation. She has two spots showing up on an ultrasound and Xrays. One is by the spleen and the other is near the lungs. I am going to have a needle aspirate done on the one by the spleen. I guess that chemo and radiation therapy would be the way to go. I live in Ottawa, Canada and it would be so expensive for me to get the food and supplements that you have on your website. Can you suggest a protocol for my Cassie as I am so bewildered at this point I don’t know what to do. The vet wants to amputate her leg. This is riduculous I think. I cannot get a second opinion from other vets because she is already involved with the one I have. They are very pickey here and I already lost one dog to mast cell tumors. She suffered a great deal because the vet did not get the proper margins and did not stitch her up properly. I am so scared that this is going to happen again I am beside myself. If you could give me some suggestions I would very much appreciate. Thank you.
Joanne
January 14th, 2009 at 11:45 pm
Joanne, I feel for you out there. You can get a lot of the supplements on-line from human vitamin sites.
Find out if indeed we have metastasis, first of all, which you are doing.
How old is your Cassie?
A grade 1 is not often dangerous, with some exceptions. The fine needle aspirate will help make that determination. Also buffy coat smears and bone marrow biopsies can help see if you have spread.
You should discuss with your vet intralesional Triamcinolone (which they have sitting on their shelf most likely already). They inject the mass with this form of corticosteriod and often you can shrink the tumor. I would of course consider cimetidine and benadryl for help with the body effects mast cell tumors can have. Also show your vet the luteolin post to consider.
D
January 14th, 2009 at 11:55 pm
Hi Ashley,
the most favored chemo protocol with mast cell tumors, in my opinion, is prednisolone with vinblastine. That is a better combo as far as I am concerned. You should be in touch with an oncologist if possible.
Also in my opinion, I doubt that K-9 immunity is too much of an overload, but every dog is different and I cannot give individual dog advice. You should discuss luteolin with your vet as well (see that blog post).
D
January 15th, 2009 at 12:02 am
Amy, I cannot give specific recommendations to individual dogs. I am sorry to here of this bad news with your pooch. Consider ND food (prescription), but mix in over 2 weeks!! Blue buffalo in my opinion is a good food overall, but less carb restricted than I would like for dogs with cancer. There is little harm in adding some low or non fat cottage cheese with flax oil, although omega 3’s are more accepted.
I would have you do some reading on some of the posts here:
luteolin
curcumin
EGCG
omega-3 fatty acids
That is a start!
D
January 15th, 2009 at 12:17 am
Shirley,
good work on advising the benadryl injection. Raw diets for cancer dogs is usually a bit of a no-no. Sometimes the immune system is not up to par and the microbes in the packaged meat may be too much.
The blood test you are talking about is called a buffy coat smear, good idea.
The conventional perspective is to do chemo, but many vets do not advise it for grade 2, since sometimes it turns out fine. Other times not so, so we have a quandary. There is no right answer. If you decline chemo, advise frequent full body cancer checks (ultrasounds, cbc, chem panel, urinalysis, chest films, buffy coat smea, physical exams, aspirates as appropriate) frequently as decided by you and your vet.
You might want to discuss EGCG, Curcumin, krill and Luteolin with your vet.
D
January 15th, 2009 at 11:40 am
Dear Dr. Dressler,
Thank you so much for your suggestions. I have now been informed at our vet appointment this morning that the tumor is a Grade II. The surgeon whom my vet called said that it would be impossible to operate on. He also suggested amputation. I also found out that the only place that has radiation therapy near me is in Guelph, Ontario which is about a 10 hour drive. I would have to leave the dog there. As she is so attached to us so this is not an option. I have an appointment with an Oncologist tomorrow to see what she suggests. I feel so alone in this because my vet is not a surgeon, nor is she really versed on mast cell tumors. The surgeon said that he did not feel that the other dots on the x rays were harmful but I want to have a needle aspirate done on the one near the spleen as these could be more mast cell tumors (he said doubtful). You would think that in a place like Canada we would be more cognisant of what is out there to treat this horrible disease and also have a radiation therapy clinic nearby. I have read every post on your site and have sat here for hours on my computer searching for answers. As far as her diet goes I have found some food (hard)called Holistic Blend, has lamb meat,millet,brown rice,amaranth,barley,salmon,flax seed and alfalfa, does this sound OK? slso will start her ob krill capsules and other things and will start her on this. At this point I feel everything is just an exercise is futility. I will not give up no matter what though. It does not look like the prognoses for my dear Cassie is very good does it. I will certainly mention the luteolin. I mentioned it to my vet but she didn’t seem interested. Is there anything else that you can suggest.
Thank you again so very much,
Joanne
January 15th, 2009 at 5:34 pm
Dear Dr. Dressler,
My 3 year old golden lab recently (October) had a mast cell tumour removed from his chest. It was classified as grade 2, they believe it was removed with clean margins and liver and spleen biopsies (and ultrasound) indicated that the tumour did not appear to have metastasized (sp?) at this point.
He has been particularly itchey dog all of his life (chews his feet ALOT), and this doesn’t seem to have changed. In addition his scar from his surgery seems to change colour (some days seem very red), something that we had noticed with his actual tumour, is this something we should be worrying about?
At this point in time we have been advised that additional treatment does not seem necessary and that we should just check him over regularly for lumps etc.. does this seem reasonable advice?
Thank you so much for your time and help
January 15th, 2009 at 6:16 pm
Dear Dr. Dressler,
Thank you so much for your reply and suggestions. On Tuesday we will be taking our Lucy to see the Oncologist to discuss her case and possible treatment, also on Tuesday Lucy will have an ultrasound done to check for any possible masses internally. On your suggestion we will stop the raw diet and have made a list to take with us to the appointment to discuss adding the supplements you have told us about. We are also currently giving Lucy the K9 Immunity and K9 Trans Factor supplements along with fish oil. Do you think that the Krill oil would be a better oil to use? Thank you again for your help.. Shirley
January 16th, 2009 at 1:56 pm
Dear Dr. Dressler,
Cassie had her first chemo done today,also fine needle aspirate of the dot on her spleen. The protocol that this oncologist is using is as follows: Vinblastine and lomustine with prednisone pill. Is this a good protocol. She pooh pooh the luteolin and did not even want to hear about it. She told me that she is the oncologist and that I must follow what she says. Unfortunately this Animal Hospital (tops in our city of Ottawa) is the only one that does chemo. So, I guess that I am stuck with her protocol. The above would go on for nine weeks. Boy is this chemo expensive. Thank goodness I have pet insurance!!! It only covers $2,000 but that is better than nothing. I have been giving it some thought and I am considering ordering the K9 Immunity, even though our dollar is only worth 79 cents. Do you think that it would really help my dog. As I said before I don’t get good vibes off of the people I have seen so far so I am left in the lurch, sort of speak, and have to trust them whether I like it or not. Your comments or any help you can give would be most helpful. Once again I would like to take this opportunity to thank you as I know you are very busy.
Regards,
Joanne
January 19th, 2009 at 1:28 pm
I would really try to push your vet to consider intralesional triamcinolone. Do not be afraid to get a second opinion!
You might want to look at http://www.dogcancercopingguide.com for a little extra.
D
January 19th, 2009 at 1:33 pm
Natalie, sorry to hear about this.
Sounds like you may have an allergic dog, which has a theoretical link with mast cell tumors. Talk to your vet about treatment for itch, also whether benadryl and cimetidine might be worthwhile. Find out also the mitotic index of the tumor (how many cells were dividing per high power field, a measure of how aggressive it is). If 5 or less, this is more aggressive (a fast moving cancer) and you would, in my opinion, consider more treatment. If over 5, median survival is 70 months, generally less aggressive.
D
January 19th, 2009 at 1:34 pm
I like krill oil for the reasons stated in the blog post (my personal opinion). You might be interested in the e-book coming, my dog cancer survival guide, should be out within a few weeks, which goes into a lot of detail about the omega 3 fatty acids..
Best,
D
January 19th, 2009 at 1:40 pm
That is too bad about the oncologist. You might want to read the post about prejudice in viewpoints, which, of course, is just another viewpoint (mine)! As far as chemo goes, yes, it is good. And in all honesty oncologists have more experience than I delivering chemo protocols as that is what they spend most of their time doing. I cannot say whether the K-9 immunity will for sure help your dog, only that some dogs benefit from beta glucans…which is the best anyone can say.
D
January 22nd, 2009 at 4:28 am
Dear Dr. Dressler,
Thank you for the info. Took Cassie to the vet yesterday for a chemo treatment but her white blood cell counts were too low to give. Oncologist said that this was typical and not to worry. She also said that Cassies’ tumor is almost gone. How could this be. I am so happy. Ordered K9 Immunity and received it yesterday and have started Cassie on it. The other things that showed up on her X rays were negative so this was very good news. I hope and pray that all will be well. I read your post on Artmisinin and am thinking maybe I should get some of this. Can you get it at a Health Food Store. I don’t know where to start to look for it. Is there another name for it perhaps.
Joanne
January 22nd, 2009 at 1:16 pm
Dear Dr. Dressler,
I realize I have already asked you about artemisinin but found some web-sites that sell it and it all so different. Can you recommend a company to buy it from so that I don’t get some placebo or something. Also how much per day would you give to a 60 pound dog. This might help Cassie.
I phoned her Oncologist today and she really took offence to my asking again about intralesional triamcinolone. Unfortunately Alta Vista Animal Hospital here in Ottawa is the only facility in this City that give Chemo. I am stuck and that is it. Hopefully what she is doing will work. Cassie is only seven and very strong so I am hoping she will pull thru. Thanks Dr. D.
Joanne
February 4th, 2009 at 7:44 am
I have posted before but didn’t get any response. Our 6 year old schnauzer Benny has Stage 2 Mast Cell Tumour, removed in November, 2007, returned in July, 2008. No more surgery, just CANINE LIFE MUFFINS (cancer formula), lots of good supplements, reishi, Chinese mushrooms, turmeric, modified citrus pectin, salmon oil pills, artemisinin twice daily etc. He is on 15 mg. of prednisone every other day and one tumour is now growing and very hard and red. I fear that it will “burst” and he will suffer. I don’t know what to do. We have called our vet who is not in the office today. I HATE this disease. Do you think shots of intralesional Triamcinolone would be effective at this stage? I am at my wit’s end and worn out after over a year of worrying daily.Benny is only 6 and a half and he doesn’t deserve this. Inoticed the first lump in May of 2006 and NOTHING was done until November 2007 and it was TOO LATE!!
PLEASE HELP ME!!
Joanne & Benny
February 8th, 2009 at 11:24 pm
Joanne, yes, most definitely talk to your vet about intralesional triamcinolone!!
Good luck,
D
February 10th, 2009 at 10:48 am
My dog, Nikki, had surgery last week and it was a very bad, bloody, tumor. It was thought to be a sist, it turns out to be Apocrine Adenocarcinoma. What is the likelyhood of survival. My dog is only 4 years old. Husky/mix with lab and shepard?
February 11th, 2009 at 5:58 am
Thanks Dr. Dressler,
Our vet did give Benny a shot of intralesional triamcinolone last Friday, February 6th, 2009 and the tumour is reduced a little in size, but not as much as we had hoped. He also got a shot of benadryl.
Our vet also has Benny on 10 mg. of prednisone daily and 2/3 tablet of Pepcid AC. Every day with him is a “gift.”
Thanks for responding to my post.
Joanne & Benny
February 11th, 2009 at 10:53 am
Hey Dr.D,
I talked with Vodka’s vet about injecting triamcinolone into the MCT in his prescapular region, but they seem hesitant about it. This mass reemerged in same area from which they removed an infected lymph node a few months ago. Since chemo doesn’t really seem to be working, I was wondering if Vetalog injections were an option, but the oncologist seems hesitant about it. Any thoughts on why this may not be a good idea.
Just to give you an update - Vodka’s MCTs have penetrated his lymphatics, he was on chemo and had surgery to remove a lymph node. He’s still on prednisone, artemisinin, avemar and several supplements.
Thx!
-K
February 18th, 2009 at 7:18 pm
I have a 12 year old yellow lab, in fairly good health. In the last week he has had some hip problems. We already have him on a glucosimine chondrotain regiment. When I went to the pet store and this woman told me of a product called the MISSING LINk, a natural canine omega 3 superfood supplement. He has been on it for 2 days, and I have ntoiced he got 3 fatty tumors within a day. Is this a sign that this product might not be for him? How can I get rid of the fatty tumors without surgery, or atleast decrease their size?
February 21st, 2009 at 7:57 am
Dear Dr. D.,
Benny received the intralesional triamcinolone shot into his enlarged Mast Cell Tumour on Friday, Feb.8th and now the tumour is back to its original size. We have not called the vet but wondered if you have any ideas as to what we do from this point on? The area is inflamed and I am fearful that it will burst and cause great distress. So far Benny seems comfortable and not bothered by it.
He is eating the cancer formula Canine Life diet along with lots of freshly steamed vegetables, especially broccoli and many supplements whihc I have previously outlined. He eats well, gets lots of exercise and continues with the daily dose of 10 mg prednisone.
Thank you for any suggestions you may have.
Joanne Johnston & Benny
March 9th, 2009 at 9:27 am
Hi Dr. D!
I want to buy your book, but my husband is not a believer. You see our 4 year old female Boxer, Layla, was diagnosed almost 3 months ago with grade 3 mast cell tumors in her lymph node in her groin. We’ve already spent thousands of dollars…
We had one infected lymph node removed almost 3 months ago and during that time it spread to the lymph node right next to her colon. The doctor said they could not remove it due to the location. Meanwhile, she also sprouted two tumors on her nose.
Layla was on an I.V. chemo/prednisone treatments for her first 2 weeks, then her WBC were too low and she had to take time off. During 2 weeks with no treatment, the tumors on her nose started getting bigger again. The oncology vet said that she wanted to try a pill form of chemo she takes every 3 weeks, because she was not seeing the best results from the I.V. form. Layla still seems to be in good spirits though, still eating, still playing, but has gained a significant amount of weight due to the steroids.
We are soo scared we are going to lose our baby, she is so young and full of love still to give us! We are newlyweds, recently out of college so we do not have a large income and are getting discouraged about whether or not chemo treatment is the best treatment for Layla. The oncology vet, does not seem to ever have time to sit down and talk about functional supplements and of course she is the only one around.
We have changed her diet to EVO Chicken kibble with 3 pumps of fish oil mixed with water; a daily multi-vitamin; K9 Immuno-modulation therapy by Aloha Medicinals; and Benadryl 3 times a day. I think she has been eating better than I have lately…But I am still not sure that we are doing everything we can.
Questions to you:
I want to try a vet who is more in to functional supplements. Do you think this is a good step to stop chemo and try supplements? or both?
If I could persuade my husband into buying your book, does your book cover specific grade 3 mast cell tumor treatments?
Dr. D, I wish I had all the money in the world so I could bring her to see you! From watching your video, you seem to have more compassion for animals than most vets.
Thanks for being you!
Katie from Tulsa, OK
March 9th, 2009 at 4:09 pm
Katie,
there are some things you can still do, and
yes, the book does deal with mast cell tumors. You can also try it and if you do not like it you can return it!! I think you will find an massive amount of info in there.
Another option: webinar:
http://dogcancerblog.com/ask
Thanks for the compliment!!
D
March 16th, 2009 at 3:39 am
Hi Dr. Dressler:
I have left many posts but have no answers from you except getting my vet to change her mind on treatment.
I have to say that we are so pleased with Cassies’ cancer. Sher is now in remission and her tumor is gone. She is still getting Chemo but only every other week with pills. She is also still on K9 immunity with trans factor. This is very expensive so I am going to switch to the other pills that you mentioned on another blog page. I was of the understanding that tumeric was also good for treating cancer. Is this a proponant of curcumin or is it completely different. I was going to mix it with wheat bran but then I realized glutens are not healthy for dog cancer patients. I am still looking for some letchithin. When the lump is gone, as they say and Cassie is in remission how long do they continue chemo for. It can’t be forever surely. At $200 - $400 per treatment it is getting really expensive but has done the job. Could you please answer my post, I would appreciate it very much.
Joanne and Cassie
March 16th, 2009 at 6:11 pm
Hi Joanne and Cassie,
What is your vet’s recommendation on the chemo duration? Your vet is the one managing the case and seeing your dog, and I cannot give individual recommendations for people’s pets, sorry. I am able to give general information that apply to many dogs though.
Curcumin is a component of turmeric, yes. Lecithin is easy to find online, just Google it. Copy this and paste in your browser window:
http://www.google.com/search?hl=en&q=buy+lecithin&btnG=Google+Search&aq=f&oq=
It is a pain to deal with though, messy and sticky, but it does help absorption when given with water.
I wish you the very best.
D
March 18th, 2009 at 4:36 am
Dr Dressler,I have been using neoplasene (bloodroot) since august,2007,for mast cell tumors,have removed 14 plus tumors,most of them small. Have you any knowledge of this treatment? Thank You
March 23rd, 2009 at 3:47 am
Thank you Dr. Dressler for answering my questions. Cassies’ tumor on her leg is completely gone and she is in Total remission at the moment. She is getting her chemo by pill now instead of into the tumor. I cannot get any cognitive answer from my oncologist regarding the length of treatments. I should think that they should stop soon and she should just be checked every two weeks or so. I finally found some letchithin and have mixed it with the curcumin and Cassie just loves it. Put it on her food with the coconut oil and she gobbles it right down. Are there any other supplements that you might suggest for her. I still am giving her K-9 immunity and transer factor. The other pills that you recommended are much cheaper but they cannot ship to Canada without going through customs etc. It would take forever to get them. I certainly wish that Canada would buck up and get some of these things for their canine children as they really seem to help. Even our Vets don’t have the time or caring to have a site like yours. God Bless you Dr. Dressler as you are a Godsend. You must be exhausted from answering all of these blogs, carrying on your practice and at the end of the day having time to spend with your family.
Regards,
Joanne and Cassie
P.S. The comment on Bloodroot by patsi is very interesting and will wait and see what your comment is.
April 4th, 2009 at 4:51 am
my 8 year old lab, alley, has been diagnosed with mast cell cancer on the base of her tail. we are going to vet oncologist next week. they talked about possibly removing her tail. i know they do tail removals routinely in certain breeds as puppies, but how big of a surgery is it for an adult dog? thank you -alley’s mom
April 13th, 2009 at 2:47 pm
My female english setter is near 12 y
April 13th, 2009 at 2:57 pm
oops, started this but mailed it by mistake.
My female english setter, Chloe, is near 12 years old. She was diagnosed with hemangiosarcoma 15 months ago.. Her spleen was removed and weighed 5.5 pounds. Now they don’t think she was misdiagnosed because she lived so long without treatment.
Today, April 13th, she has been diagnosed with a mast cell tumor via biopsy.. It is on her right had lower leg, near her foot.. Too tight to excise because they can’t get good margins. The lymph node in same leg,in her thigh, is involved. She was given 50 units of ccnu 2 weeks ago and is still on prednisone, benadryl and pepcid. I followed up with an ultrsound today to see what else might be involved. It has spread to an inch tumor in her spine near her bowel. I have been feeding her EN formula dog food since her hemangiosarcoma diagnosis 15 months ago, afraid to feed her off the shelf dog food. It is supposed to be easy on the stomach but has rice in it.. Now, I read that grain is not good for dogs and might trigger mast cell tumors. Not sure what to believe and what to do at this point. Anybody out there with any advice?
April 13th, 2009 at 8:03 pm
Dr. Dressler,
I am curious whether you have heard of treating mast cell tumors w/ a drug called “masitinib” which is a KIT receptor inhibitor?
http://www.ncbi.nlm.nih.gov/pubmed/18823406
April 14th, 2009 at 3:31 am
Hi Doreen:
My seven year old border collie was diagnosed with a mast cell tumour on her right hock. She has gone through many weeks of chemo and the tumour has completely disappeared. She is in total remission.
The diet that I give Cassie is one where there is not wheat products in the food. It is called Holistic Blend. Do not know if you can get it in the States. I also give her flaxseed powder and coconut oil along with K-9 Immunity and K-9 Transer Factor. She also gets four fish oil caps every day. She too is on Prednisone but the dosage has been cut down to a 1/4 pill per day. I am now checking into Bloodroot - it seems kind of toxic and am not sure if it is a good thing. We will have to see what Dr. Dresslers’ comments are on this. I wish you all of the best. The chemo seems to be the best thing. We had Pet Insurance so it cost us about $2,900.00 out of our own pocket and the insurance paid $2,000.00. I would imagine in the states you have better coverage for animals than we do here in Canada.
Good Luck and I hope that this helped.
Joanne and Cassie(my baby dog)
April 14th, 2009 at 3:38 am
Hi again Doreen:
Forgot to tell you that I also give Cassie Tumeric (Curcumin) mixed with Letchithin every day on her foot.
Joanne
April 15th, 2009 at 7:19 am
Hi Dr. Dressler,
My husband and I adopted an 8yo husky/shepherd mix named Ike with a grade 2 mast cell tumor. He was being euthanized on a Monday morning and we took him in the previous day to try and give him the best life possible. He is truly amazing. He is going to have surgery to removed the lymph node as the tumor is no longer there (he chewed it off) and chemo will be given after he heals. I want to do everything possible for him and I feel very confident with both my vet and the surgeon. I do however feel I’ve been lacking knowledge in the area of diet. I’ve read some of the entries from above, but would please recommed a food, etc…? He is taking benadryl, pepcid, prednisone along with sucralfate daily and want to provide the best diet with interfering with his medications. Any information would be very appreciated and thank you for this wonderful blog.
Lori
April 15th, 2009 at 9:56 pm
Hi Dr. Dressler,
Thank you for this wonderful site.
I have a 7 year old yellow lab who just had surgery for a stage 2 mast cell tumor. My vet said the margins were clear.
She has not recommended any further treatment. I have been researching and switched his food to Eagle Pack Salmon Dry Food and grain free Wellness canned food.
DO you think this food is a good choice for him?
Also he has never shown any signs of allergies at all, should I consider giving him benadryl anyway? I have read so many reports that this helps the Mast cell tumors. Unfortunately I found your site too late to give him benadryl before his surgery.
Also I have researched the Professional Vet Immunity Tablets and K-9 Immunity do you feel this would be beneficial to him??
Should I give him additional fish oil tablets??
Thank you for any advice you can give me. I feel there should be something else I should be doing instead of just the surgery!
Thank you so much!
Barbara
April 15th, 2009 at 9:58 pm
Some options are Innova Evo, ND food by Hills, Blue Buffalo.
Change foods slowly by mixing over 7 days or more!!!
I will discuss diet is the upcoming webinar, and will go over your question in more detail:
http://mydogvet.com
Best,
D
April 15th, 2009 at 10:08 pm
Oh yes and Wysong now makes a cancer diet that seems good,
D
April 15th, 2009 at 10:26 pm
Hi Jonathan,
yes, a drug that blocks a mutated Kit tyrosine kinase receptor found on some mast cell tumors. It is not available yet to my knowledge:
“The Committee’s conclusions by majority decision at the end of the re-examination procedure were
that the benefit-risk for Masivet was considered acceptable in a restricted indication for dogs in a sub-
group that exhibit a positive response to treatment (i.e. treatment of non-resectable dog mast cell
tumours (Grade 2 or 3) with confirmed mutated Kit tyrosine kinase receptor) and, therefore,
recommended the granting of a marketing authorisation for Masivet. ”
Not for all cases of Grade 2 or 3 MCT!
I will talk more about this pending drug in the webinar…see:
http://dogcancervet.com
D
April 15th, 2009 at 10:30 pm
Doreen,
grains are not pure evil in dogs with cancer. Carbohydrates should be restricted though. Go for a food like Hills ND, Blue Buffalo, Innova Evo, and Wysong makes a new cancer diet I have heard is good. Go for, on a dry matter basis, about equal parts protein and fat and about 2/3 of these carbohydrates..very roughly. There are recipes in the book available above…
D
April 15th, 2009 at 10:31 pm
Doreen I will also answer more detailed questions this Sunday on the webinar if you are interested:
http://dogcancervet
April 16th, 2009 at 8:21 am
Hi Dr. Dressler:
I was wondering if you could please address my question on bloodroot.
Thanks so much.
Joanne & Cassie
April 19th, 2009 at 10:46 am
Hi Dr. Dressler,
Thanks for a great site! My 8 1/2 year old lab had a Grade 2 MCT removed last year (under front leg), now she is coughing which the vet has treated a potential low grade pneumonia, however after 4 weeks it is not responding, it is getting worse if anything. My question would be and i understand you can’t give specific advice so will try and keep this generic:
Do MCT often spread to the lungs/chest? (lymph nodes in chest), if it has spread to the chest i’m worried her end will be particularly unpleasant (choking), is this likely with a MCT on the chest? What is the best way to appraoch MCT if it is the chest in your opinion?
many thanks for your help. Please keep up the good work!
April 21st, 2009 at 6:49 pm
it can spread to the other organs ,,according to my vet
Janet
April 23rd, 2009 at 9:57 am
Hi Dr Dressler-
I’ve recently discovered what appears to be two dark skin tags, one on the back left leg and one on the back, and a small lump slightly larger than a pea near the ribs of my seven year old pug Iggy. My boyfriend and I have just moved to a small town and have enjoyed our new veterinarian. His bedside manner is comforting, he seems knowledgeable, and the staff is very sweet. Today we took Iggy in to look at the skin tags and lump and decided to schedule surgical removal and biopsy of these growths.
I myself am a nurse and wanted to be prepared to discuss all possible options with the vet and had read about MCTs and corresponding treatments before our appointment. I voiced concern about possible MCTs and followed up with asking about the anesthesia he uses for surgery. He detailed pre-medicating with Ketamine and I believe Fentanyl with Isoflurane during op.
I mentioned the Ketamine/ metastasis connection and also pre-medicating with benadryl due to possible histamine release. Both suggestions were basically pooh-poohed as something he’d never heard of (the ketamine) and that the growths were too small to release sufficient histamine for benadryl to be needed. Now I’m afraid he thinks I’m an internet junkie who can’t seek out reputable information… I realize that Iggy hasn’t been diagnosed with mast cell tumors YET but pugs are susceptible and I want to take all precautions.
I have two quick questions.
1) Would it be safe to give Iggy OTC benadyl the night before surgery if Dr won’t give IV? He’s 17 lbs and the dosage suggestion I’ve found would be 10mg po.
2)How hard should I push the ketamine issue? Should I go to another vet?
I’m also including one of the few articles I could find regarding Ketamine and Metastasis from Anesthesia and Analgesia. Hope this is helpful to others out there with skeptical vets!
http://www.anesthesia-analgesia.org/cgi/reprint/97/5/1331
Thanks again,
Andrea
April 24th, 2009 at 12:23 pm
Hi Dr. Dressler,
I have an 11 year old Weimaraner that started getting MCT’s when she was 2. Every other year, she has to go in to get two or three removed at a time. In the past, I’ll notice the larger one (usually about the size of a dime) and my vet will find one or two tiny ones during the examination. Her last surgery was in 2007 to remove 3.
This time around, I noticed a large lump pop up on her right rear leg in January. Then a tiny one appeared on the top of her head and another small one on her front right leg. The difference this time is she has been obsessed with licking the one on her rear leg to the point where the skin on top is rubbed raw and it bleeds. She recently started licking the one on her front leg and it started bleeding too.
I took her in for her annual visit and my vet seems to think they are all MCT’s, based on what they look like and her history. He’s very concerned with the one on her back leg due to it’s location, size, and the ability to get enough margins around it.
I need someone to be very frank with me and tell me what can happen to her. Money is very tight right now and I don’t have extra cash. I will do everything in my power to get them removed, but I don’t know how much time I have considering her age, their size, her licking them, etc. Have you ever heard of a dog licking them like that? Thanks for your great site and information.
April 26th, 2009 at 11:34 pm
Dear Dr. Dressler,
My beloved bullmastiff, Lucy, has been living with a diagnosis of multiple grade 2 mast cell tumors since November of 2006. Lucy is now 7 years old.
She has been on Chlorambucil off an on since her diagnosis. The first time she went off of the drug because her lumps had been resolved for approximately 6 months. Sadly, they returned after 3 months and so we started giving her 4 mg of Chlorambucil per day again.
Lucy has twice been taken off of the chemo because, as you can guess, her white blood cell count dropped. She was taken off of the the chemo last August and her white cells rebounded quickly. In the meantime, she was treated as needed with low doses of prednisone (5 mg per day). However, in January the tumors began popping up all over and we put her back on the chemo. Now her white blood cells have dropped again and so, again, we have taken her off of the chemo.
Lucy takes a multi-vitamine, fish oil, vitamin E, Benadryl and Pepcid every day. Is there something more I should be giving her? Is there something I can give her to help her bone marrow?
Lucy’s skin itches her and she has developed very dark patches on her belly where her legs and tummy rub together. She licks it all the time. I have a topical treatment but it doesn’t really do much.
Lucy is 94 lbs and that is actually big for her frame. Even though she is a bullmastiff, she is a small one. Her appetite is great. But her tummy has always been sensitive - since she was a puppy. I have heard that virgin coconut oil may be good for her skin. Is this true? If so, what should I get and how should it be administered?
Please let me know if there is something I should try for her bone marrow and/or her skin. I will do anything for her.
Thank you very much for your time.
Sincerely,
Catherine
May 20th, 2009 at 9:59 am
Dear Dr. Dressler -
Our beloved/precious 15 year old Shi-tzu was found to have a tumor on her toe about 3-4 months ago. It then spread to her thigh. It remained fairly quiet when we took her to the vet - they were going to take a biopsy - but she was found to have mild to moderate kidney failure.
About two weeks ago, the area on her leg became very enlarged and red. We took her to the vet and that day they found two tumors on her stomach. They took a biopsy and it was found to be mast cell cancer. She has been eating pretty poorly over the last month - that is when I started supplementing her with “Quick Start” high calorie supplement for dogs.
Two weeks ago - when we got the mast cell cancer diagnosis - I began giving her K-9 immunity power pack. The tumors on her abdomen have enlarged over the past week. We are TRYING”EVERYTHING”……………………………….to HELP HER!!!!!
Do you have any thoughts or recommendations??? THEY WOULD BE ‘profoundly” appreciated!!!!!!!!!!!!!!!!
GOD BLESS YOU!!!!!!!
Diane Krzyzanowski
May 29th, 2009 at 12:35 am
Dr Dressler:
My 11 yr old greyhound has been recently diagnosed with squamous cell carcinoma. They are unable to surgically remove it do to the location in her lower jaw. Recommendation is radiation which I will know the schedule today of what they think should be done. What about non-conventional medicine, such as turmeric, and artemisinin can they be used together. Your thoughts would be greatly appreciated.
John
June 1st, 2009 at 2:24 pm
My 10 1/2 year old female Black Lab “Fire” was diagnosed with MCT last October after a lump appeared on her left rear leg. Surgery showed it had spread to the nearest lymph node and both the lymph and the tumor were removed in October. She was immediately placed on prednisone and we have since weaned her to 1/2 a pill every other day. There has been no re-occurrance of the MCT, now seven months post-surgery. Fire also has arthritis, and had responded well to Rimadyl prior to the cancer diagnosis. We had to take her off the Rimadyl due to putting her on the Pred, and we subsequently put her on Tramadol for pain. Her arthritis seems to have gotten worse since the surgery, and we are wondering if it would be wise to stop the prednisone treatment and Tramadol, and put her back on the Rimadyl. Is it possible that her cancer could be in remission after seven months without any signs or symptoms of it’s reoccurring?
June 5th, 2009 at 9:23 am
Hello there,
First of all, thanks so much for this blog.
Second, the back ground. Tabasco is a 6 yr old male boxer. A grade 1 mast cell tumor was located on his testicals sometime in late Feb. or early Mar. On April 17, we completely removed his testicles at which time we got the grading of the tumor. Clean margins with that surgery. A x-ray and ultrasound of his body cavity was also done post surgery when the results came back and he was clear. On May 26, 2009 a second tumor was identified on his left hock and that was removed that day. Came back as grade 2/low MST, dirty margins. I know this is not a great prognosis, but at this point I want to prevent the MST from spreading throughout his body.
The vet recommended applying a bloodroot salve to the excision of the tumor that came back with dirty margins to remove any remaining cancer cells. Do you have any experience with this? What is your opinion? I have found conflicting opinions on the internet. Very positive from pet owners and absolutely horrifying from human use. I’ve seen photos of peoples noses sloughing off.
We did apply it yesterday to the tumor excision site. It seemed to cause pretty severe discomfort for Tabasco so I washed it off about 3 hours before the recommended time. The discomfort lasted even after it was washed off and the site was swollen this morning. I guess that is what you are supposed to see?
Any light you could shed would be greatly appreciated.
Amber & Tabasco