What is it?

Hemangioma is usually a benign, non-cancerous, tumor that arises from abnormal growth of blood vessels.
Hemangiomas most commonly appear on the skin, where they look like a red-wine spot. Most hemangiomas emerge within a few days to weeks of birth; hence they are called "infantile hemangiomas". They can appear anywhere on the body but are more common on the head and face. Sometimes they are referred to as strawberry marks.
Skin hemangioma usually continues growing in the first year of life, then it slowly shrinks until disappearing entirely. In some cases, it remains throughout adulthood.
Another type of hemangiomas is hepatic hemangiomas, which are avascular tumors inside your liver. It is the most common benign liver tumor and is thought to be present from birth.