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The answer is: Usually benign tumor seen in young dogs

The appearance of a raised, hairless and bright red "angry" looking skin lump on a young dog is characteristic of a histiocytoma. This is often alarming to dog owners; as it they often appear suddenly, almost overnight. Histiocytomas are not painful, and most dogs do not even seem to notice them, despite the fact that they lump may be ulcerated.

Click here to view photos of a histiocytoma in a young dog.

Histiocytomas are classified microscopically as a round cell tumor. There are a variety of tumors included in the round cell tumor classification. While histiocytomas are benign, other tumors in this class may be more serious. It is important to have your veterinarian check out any new lumps and bumps on your pet to be sure.

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FAQ: What is a histiocytoma?


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