My 10-year-old Labrador has a small, painless skin lump. What is it?

Question

What is this? Found on the next of my 10yo labrador. Very small and no pain attributed. Fully attached to skin.

Dr. Elizabeth · Accepted Answer

Hello, my name is Dr. Shines and I am happy to help. From the photo, it's difficult to see the area of concern. I think what I'm looking at is a mass under the skin correct? The most common type of mass under the skin is a lipoma: https://www.petcoach.co/article/lipomas-in-dogs-benign-fatty-growths/ These benign growths don't usually cause any problems unless they grow too large (they can get the size of a volleyball or even bigger) or if they are located around a joint and interfere with movement. If this mass feels firm, grows/shrinks, feels like air under the skin (crepitus) or starts growing quickly, I recommend to have it examined to make sure it's not something cancerous. Liposarcomas, Mast Cell Tumors and Soft Tissue Sarcomas are all cancerous growths that also grow under the skin and can look exactly like a lipoma. I would also make sure to point this out to your veterinarian during the next exam, even if the mass never changes. I hope this helps and please feel free to reach out with any additional questions.

My 10-year-old Labrador has a small, painless skin lump. What is it?

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