Hemangioma
A hemangioma is a benign (noncancerous) tumor made up of blood vessels. There are many types of hemangiomas, and they can occur throughout the body, including in skin, muscle, bone, and internal organs.

Most hemangiomas occur on the surface of the skin or just beneath it. They often develop on the face and neck, and can vary greatly in color, shape, and size.

Because hemangiomas very rarely become cancerous, most do not require any medical treatment. However, some hemangiomas can be disfiguring, and many people seek a doctor's care for cosmetic reasons. In most cases of hemangioma, treatment does not involve surgery. Instances when surgery may be necessary include for tumors that are deep in muscle or bone, or for tumors on the skin that cause problems with vision, breathing, or eating.