Verrucous Epidermal Nevus - a misleading diagnosis for 28 years

Abstract

Epidermal nevi (EN) are hamartomas of the skin that result from mosaic post-zygotic mutations. There are several variants of EN, the verrucous epidermal nevus (VEN) being the most common. EN can be further subdivided into epidermolytic and nonepidermolytic, important since in contrast with nonepidermolytic EN, epidermolytic EN occurs sporadically (not heritable), and it is not associated with extracutaneous abnormalities.

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