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Capillary Malformations

(Nevus Flammeus; Port-Wine Stain; Nevi Flammei)

By

Denise M. Aaron

, MD, Dartmouth Geisel School of Medicine

Last full review/revision Sep 2020
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Topic Resources

Capillary malformations are present at birth and appear as flat, pink, red, or purplish lesions.

Port-wine stains are flat, reddish to purple lesions appearing anywhere on the body. Lesions become darker and more palpable with time (often becoming quite hyperplastic by late middle age), but the lateral extent increases only in proportion to the growth of the patient. Port-wine stains of the trigeminal area may be a component of the Sturge-Weber syndrome Sturge-Weber Syndrome Sturge-Weber syndrome is a congenital vascular disorder characterized by a facial port-wine nevus, a leptomeningeal angioma, and neurologic complications (eg, seizures, focal neurologic deficits... read more Sturge-Weber Syndrome (in which a similar vascular lesion appears on the underlying meninges and cerebral cortex and is associated with seizures).

Diagnosis of Capillary Malformations

Treatment of Capillary Malformations

  • Vascular laser treatment or cosmetic creams

Treatment with vascular lasers produces excellent results in many cases, especially if the lesion is treated as early in life as possible. The lesion can also be hidden with an opaque cosmetic cream prepared to match the patient’s skin color.

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A 65-year-old man comes to the office because he has had an itchy rash for the past 6 weeks that is purple in color on the flexor aspect of each wrist. On physical examination, the lesions are flat and smooth. Biopsy is performed, and lichen planus is confirmed. Which of the following laboratory studies should be done? 
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