Learn more about pigmented birthmarks. The hemangioma is a common type of vascular tumor that may occur early in life and resemble a birthmark. It is usually painless and harmless, and its cause ...

This is a 2-month old female with a history of a hemangioma on her right buttock since 2 weeks of age. The lesion began as a small birthmark and has continued to grow, and is now ulcerated.

The hemangioma gradually decreased in size from the age of 5 months. Small white islands of normal skin appeared in the center of the lesion and spread to its periphery (Figures 2-5). At 15 months ...