A hemangioma is a cluster of benign tumors made up of newly formed blood vessels. A hemangioma can occur on the skin or on internal organs such as the spleen. A hemangioma on the skin is called a cutaneous hemangioma. A hemangioma beneath the skin is called a subcutaneaous hemangioma.

A cutaneous hemangioma will appear as a raised cluster of blood cells on the skin. The hemangioma will be red or purple. A subcutaneaous hemangioma will not be visible to the naked eye. Symptoms will depend upon where the hemangioma is located within your dog’s body.

The primary cause of a hemangioma is unknown.

A cutaneous hemangioma can be diagnosed by a physical examination. A subcutaneous hemangioma may be diagnosed by diagnostic imaging techniques such as an ultrasound. In either case, a biopsy may be done to rule out cancer.

In some cases, a hemangioma will go away without any treatment. If the hemangioma does not go away on its own, surgical removal may be performed.

There is no prevention for a hemangioma.

No, you cannot get a hemangioma from your dog.