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My dog has breast cancer after surgery. What are her next steps?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Female | unspayed | 11 years and 3 months old | 21.385 lbs

My 11yr old female spitz had a growth near the rear breast since 4yrs.She has only 4 nipples. She is not spayed. It started growing and ulcerating since 1yr. My vet's initial diagnosis was wart. As it was growing surgery was done 10 days ago. The biopsy shows possibly lobular carcinoma. Only breast tissue was removed. She is otherwise active and feeding well. What should we do now?? Is chemo advisable? How long will she survive without chemo and with chemo? What is the protocol?

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1 Answer

Most Helpful Answer

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Answered By Emily, DVM

Veterinarian

Published on June 2nd, 2017

Hello I would check with your veterinarian about doing xrays to see if there is any evidence of spread to her lungs. Also discuss with your veterinarian if all of the mass was removed ("clean margins") or if additional surgery is needed. In some cases if there is no spread of the cancer and it was completely removed do further treatment is needed.

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