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Alternative names Return to top
Strawberry mark; Vascular skin changes; Angioma cavernosum; Capillary hemangioma; Hemangioma simplexDefinition Return to top
Red birthmarks are colored, vascular (blood vessel) skin markings that develop before or shortly after birth. (See also birthmarks - pigmented.)Causes, incidence, and risk factors Return to top
There are two main categories of birthmarks. Red birthmarks are a vascular type of birthmark. Pigmented birthmarks are areas in which the color of the birthmark is different from the color of the rest of the skin.
Hemangiomas are a common vascular birthmark. They are usually painless and harmless. The cause of hemangioma is unknown. The color results from the extensive development of blood vessels at the site.
Strawberry hemangiomas (strawberry mark, nevus vascularis, capillary hemangioma, hemangioma simplex) may appear anywhere on the body, but are most common on the face, scalp, back, or chest. They consist of small, closely packed blood vessels. They may be absent at birth, and develop at several weeks. They usually grow rapidly, remain a fixed size, and then subside. 95% of strawberry hemangiomas disappear by the time the child is 9 years old, although there may be some slight discoloration or puckering of the skin where a strawberry hemangioma existed.
Cavernous hemangiomas (angioma cavernosum, cavernoma) are similar to strawberry hemangiomas but are more deeply situated. They may appear as a red-blue spongy mass of tissue filled with blood. Some of these lesions disappear on their own, usually as a child approaches school age.
A port-wine stain is a flat hemangioma made of dilated blood capillaries. The face is the most common location. The size varies from very small to over half of the body surface. This is often a permanent defect, sometimes causing significant emotional distress. Port wine stains on the face may be associated with Sturge-Weber syndrome.
Salmon patches (stork bites) are small, pink, flat spots. They are extremely common, appearing on 30 to 50% of newborns. They are small blood vessels (capillaries) that are visible through the skin. They are most common on the forehead, eyelids, upper lip, between the eyebrows, and the back of the neck. They may be more noticeable when the infant cries or during temperature changes. They often fade as the infant grows. Salmon patches on the back of the neck may not fade but are usually not noticeable as the hair grows.
Symptoms Return to top
Signs and tests Return to top
All birthmarks should be examined by a health care provider. Diagnosis is based primarily on the appearance of the skin lesion.Treatment Return to top
Many capillary birthmarks (strawberry hemangiomas, cavernous hemangiomas, salmon patches) are temporary and require no treatment.Expectations (prognosis) Return to top
Birthmarks rarely cause problems other than cosmetic changes. Many birthmarks resolve spontaneously by the time a child is of school age, but some are permanent.Complications Return to top
Calling your health care provider Return to top
All birthmarks should be examined by a health care provider to determine the prognosis (probable outcome), course of action, and possible complications.Prevention Return to top
There is no known way to prevent birthmarks. Update Date: 4/17/2003 Updated by: Michael Lehrer, M.D., Department of Dermatology, University of Pennsylvania Medical Center, Philadelphia, PA. Review provided by VeriMed Healthcare Network.
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Page last updated: 28 October 2004 |