My cat's eosinophilic granuloma is back. Is it cancer? What should I do?

Question

My cat was treated for eosinophilic granuloma 2 months ago. I noticed now that he has it again but looks black and feels like a lump. Can this become cancer? What do I do? Pet's info: Cat | Domestic Shorthair | Male | neutered | 1 year and 5 months old | 12 lbs

Vanessa Yeager DVM MPH · Accepted Answer

Hi there and thanks for posting on Petco Pet Education Center, formerly Petcoach! Eosinophilic granulomas typically do not become cancerous, although they can return. Sometimes they can appear like an ulcer that is red or pink an sometimes it can look like a bump. They usually have an underlying cause such as an allergy such as to fleas or perhaps a food allergy. Other times, their cause is unknown. I would recommend seeing your veterinarian to help determine if there is underlying allergy that is contributing to the recurrence and also to ensure this is truly an eosinophilic granuloma and not something else (such as a different skin condition or a mass of some kind). I hope this helps and best wishes to you and Phineas!

My cat's eosinophilic granuloma is back. Is it cancer? What should I do?

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