title: [The diagnostic value of the epidermal pigmentation in nevus-cell nevi (author's transl)].
abstract: The pigmentation of epidermis in areas of nevus-cell nevi is frequently not specially noted, but may be of considerable diagnostic value in particular cases. Two cases are demonstrated. Multiple tumors with the aspect of nevus Spitz in a 35-year old woman were histologically diagnosed by means of melanin impregnation methods as "amelanotic nevus-cell nevi with overlying vitiligo". A flat papillomatous nevus-cell nevus of the abdominal skin of a 38-year old man showed clinical signs of activity, but histologically only a total depigmentation of the epidermis and of the peripheral parts of the nevus was observed.
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D009508:Nevus, Pigmented / Q000175:diagnosis / Q000473:pathology*; D010859:Pigmentation Disorders / Q000175:diagnosis; D012878:Skin Neoplasms / Q000175:diagnosis / Q000473:pathology*
vernacular_title: Zur diagnostischen Wertigkeit der Epidermispigmentierung im Bereich von Naevuszell-Naevi.