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My cat's GI mass shrunk after steroids. Is it lymphoma or benign?

Updated On September 23rd, 2025

Pet's info: Cat | Domestic Mediumhair | Male | neutered | 5 years and 1 month old | 12 lbs

Greg is FIV +, has been diagnosed with severe dental calculus and a gastrointestinal mass/tumor - they suspected lymphoma since it shrunk after a steroid injection. But for a while he was massive blood clots and fleshy mass. Now he seems to be actually improving, save for his difficulty eating due to his mouth. Could it be an abscess or benign growth of some kind that ruptured and passed? His stool is no longer the bloody mass it was, and no more vomiting etc either.

1 Answer

Most Helpful Answer

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Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

Published on February 23rd, 2019

His response to the steroid injection may be more indication that he does have lymphoma. Prednisone, a steroid, is commonly used in conjunction with a chemotherapeutic agent to treat lymphoma in cats. The steroid will decrease inflammation which may reduce his symptoms. Consider a consult with a veterinary oncologist to discuss testing for a definitive diagnosis after which treatment, if you choose, can begin.

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