A Case of Acantholytic Acanthoma / 대한피부과학회지

ABSTRACT

Acantholytic acanthoma is a benign tumor of epidermal keratinocytes. It presents as a solitary asymptomatic papule in which acantholysis is a histologic hallmark. Its histologic finding is so much similar to those of other acantholytic dermatoses such as Hailey-Hailey disease and pemphigus vulgaris. But the clinical features including the solitarity and asymptomaticity do not fit into any specific acantholytic dermatoses. We describe a 49-year-old female patient with this peculiar benign tumor on her calf.