port wine naevus

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port wine naevus2016-11-13T20:54:39+00:00

port wine naevus 

port wine nevus image from New Medical Terms

Gorbachev sporting a port wine naevus


A common congenital neurovascular malformation, which appears as deep red-purple macular lesions, corresponding to cutaneous angioma(s), often located in the ophthalmic branch of the trigeminal nerve; when located on the meninges, port-wine nevi may be confined to the occipitoparietal pial vessels, where sluggish blood flow predisposes to hypoxia of underlying cortex; port-wine nevi may occur in the normal population–e.g., Mikhail Gorbachev, or be part of various syndromes–e.g., Klippel-Trenaunay syndrome, Beckwith-Wiedemann syndrome, Cobb syndrome, Rubenstein-Taybi syndrome, trisomy 13 syndrome.

Clinical findings 5% of patients with port-wine nevi have convulsions, mental retardation, hemiparesis or hemianopsia contralateral to lesions

Pathology Densely-packed, dilated capillaries in dermis and subdermis 

Management Flashlamp-pulsed tunable argon dye laser, most effective if administered < age 7. More treatment may be required for facial lesions.  

Synonyms Gorbachev naevus, naevus flammeus, flat haemangioma, port-wine mark, port-wine stain 

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