Hemangioma

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Overview, Causes, & Risk Factors

The classically recognized hemangioma is a visible red skin lesion that may be superficial (in the top skin layers, called a capillary hemangioma), deeper in the skin (cavernous hemangioma), or a mixture of both.

Hemangiomas are usually present at birth, although they may appear within a few months after birth, often beginning at a site that has appeared slightly dusky or colored differently than the surrounding tissue.

Hemangiomas, both deep and superficial, undergo a rapid growth phase in which their volume and size increase rapidly. This phase is followed by a rest phase, in which the hemangioma changes very little, and an involutional phase where the hemangioma begins to disappear.

During the involutional phase, hemangiomas may disappear completely. Large cavernous hemangiomas distort the skin around them and will ultimately leave visible changes in the skin. Superficial capillary hemangioma may involute completely, leaving no evidence of its past presence.

Hemangiomas may be present anywhere on the body. However, they are most disturbing to parents when they are on the infant's face or head. Hemangiomas of the eyelid may interfere with the development of normal vision and must be treated in the first few months of life. On rare occasions, the size and location of hemangiomas may interfere with breathing, feeding, or other vital functions. These lesions also require early treatment.

Large cavernous hemangiomas may develop secondary infections and ulcerate. Bleeding is common and may be significant following injury to the hemangioma.