Dog ate chocolate?

ask a vet

Is mammary tumor cancerous?

Species: Dog
Breed: Chihuahua and Dachsh
Age: 5-8 years
I'm wondering whether to remove a small tumor from my 7 yr old chihuahua/dachshund's breast. Vet said there's a 50% chance it is cancer and there is a 5% chance dog would not survive surgery. I am unsure what to do. If dog doesn't survive surgery I'll never forgive myself. Can they do a biopsy w/out anesthesia to see if it's even cancerous? Thanks so much.


Online vet, Dr. Marie

Dr. Marie replied:

Unfortunately with mammary tumors, doing a fine needle aspirate usually doesn't tell us much about whether the tumor is benign or malignant.

I'm surprised your vet said there was a 5% chance that she would not survive surgery. Does she have other health issues such as a loud heart murmur?

In my practice if I saw a dog with a small mammary tumor I would always recommend removing the tumor and sending it away to find out what it was. And as your vet mentioned, with mammary tumors there is a 50/50 chance that it is cancerous.

I hope everything goes ok!

Dr. Marie.

---This question was asked in our Ask A Vet For Free section.---



Check out our dog age calculator and cat age calculator.

Want to receive pet coupons, vet advice and info on new pet products in your inbox?

* indicates required

We'll only send you great stuff, never spam. Unsubscribe any time.

Disclaimer: Although Dr. Marie is a qualified veterinarian, the information found on this site is not meant to replace the advice of your own veterinarian. AskAVetQuestion.com and Dr. Marie do not accept any responsibility for any loss, damage, injury, death, or disease which may arise from reliance on information contained on this site. Do not use information found on this site for diagnosing or treating your pet. Anything you read here is for information only.

Search for similar questions:

ask a vet

Popular questions...

Health problems. WE DO NEED A QUICK ANSWER, BUT IN CASE DOG WILL HANG ON, HERE GOES: 10 YRS OLD... (7867 views)

Heat symptoms pregnant cat. My cat is pregnant but still acting like she's in season, this has been going on now... (5422 views)

Possible stroke? Hi, Back at the end of June my dog was hit by a truck, his brakes locked, and... (9903 views)

Possible spleen cancer. About 2 wks ago noticed lack of appetite and lethargy. Took her to the vet who said... (10706 views)

Noticing metallic odor. Hi! I recently adopted a dog from a NYC euth list. I've had her for about 3 weeks... (36147 views)

Dog jealous over owner. My female dog is 2 years old. She's a black lab. She had puppies and my boyfriend... (19684 views)

Drinking and urinating more. Approx. 6 yrs old or older, part Rodesian Ridgeback, 69 pounds. He was a stray and... (4321 views)

Is rescue cat in pain? Hello I took in a stray female cat about 10 days ago. HER behaviour is odd. She... (8161 views)

Sores on dog's leg. My dog recently got theses two sores on her back leg, one bigger than the other. Its... (8612 views)

Why did my cat die? my cat was fine one day and the next he stopped everything he only walked when... (9455 views)

See all questions...

Dr. MarieDr. Marie is a veterinarian who practices in a busy animal hospital in Ottawa, Ontario. She created Ask A Vet Question as a resource for good, accurate veterinary advice online. Dr. Marie treats dogs, cats, hamsters, guinea pigs, and rats. She has been a vet since 1999.

Is an online vet visit just as good as a trip to your veterinarian? No! But, many times, asking an online veterinarian a question can help save you money. While Dr. Marie can't officially diagnose your pet or prescribe medications, she can often advise you on whether a vet visit is necessary. You can also ask Dr. Marie for a second opinion on your pet's condition.