A Case of Perforating Pilomatricoma / 대한피부과학회지

ABSTRACT

A rare case of perforating pilomatricoma is reported. A rice grain-sized lesion occurred on the 23-year-old man's left upper arm about 3 years ago. It has developed into a 0.5X0.8cm sized well-defined scaly hard tumor during recent 1 year. Excised tumor showed small islands of shadow cells in the mid-dermis and calcified materials, extruded from the dermis into the deeply invaginated epidermis, by transepidermal elimination.