White sponge nevus of the vulva

Abstract
The white sponge nevus is a hereditary leukokerotosis localized preferably in the oral mucosa, but may simultaneously manifest itself in other regions, e.g. perianally.We report the case of a 18‐year‐old patient with a primarily and exclusively extraorally located white sponge nevus of the vulva. The differential diagnosis and clinical as well as therapeutical problems of this extremely rare disease are discussed.

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