title: Keratotic papules and plaques in the genitogluteal region.
authors: Dermatopathology Duisburg, Duisburg, Germany.
authors: Amelie
authors: A
authors: von Köckritz
authors: General Hospital Hagen, Hagen, Germany.
authors: Volker
authors: V
authors: Kingreen
authors: Dermatopathology Duisburg, Duisburg, Germany.
authors: Jörg
authors: J
authors: Schaller