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My dog has a warm, swollen lump on her chest. Is it serious?

Updated On September 23rd, 2025

Pet's info: Dog | American Pit Bull Terrier | Female | unspayed | 9 years old | 80 lbs

What is this protruding pouch on dog's mid chest. Not a teat. Previously was smaller, wrinkled, cool to touch. Seems to come out of a small, pencil eraser sized hole. In past two days has become warm and swollen, about the size of a large kumquat. No changes in behavior or appetite, or elimation habits.

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1 Answer

Most Helpful Answer

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Answered By Amy S. Eutsey, DVM

Veterinarian

Published on June 8th, 2018

This is a tumor/growth. If it has changed rapidly in size, it may be starting to have a pocket of fluid inside. I cannot tell you if this growth is benign or malignant by looking at it. Your veterinarian can perform a needle aspirate to obtain a sample of cells to look at which may help you to determine the likelihood of a malignancy. Whether this is benign or malignant, it may be something you would want to have surgically removed. Even benign growths that continue to grow can be problematic...they can become infected or bleed. Have your vet take a look at Hina and get a sample from the growth and discuss surgery. Thank you for using Petco Pet Education Center, formerly Petcoach.

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