Disseminated epidermolytic acanthoma.
A 65-year-old Japanese male suffered from numerous brownish papules on his back for 6 months. Clinical appearance resembled seborrheic keratosis, but light microscopic examination revealed epidermolytic hyperkeratosis. Electron findings were the same as those of epidermolytic hyperkeratosis and systemic nevus verrucosus. It may be concluded that this type of skin disease is an acquired epidermolytic hyperkeratosis.
D000368:Aged; D003937:Diagnosis, Differential; D006801:Humans; D007642:Keratosis / Q000473:pathology; D008297:Male; D008854:Microscopy, Electron; D009506:Nevus / Q000473:pathology; D010212:Papilloma / Q000473:pathology; D012867:Skin / Q000473:pathology; D012878:Skin Neoplasms / Q000473:pathology