Two Cases of Dermatofibroma with Atrophic Features

Abstract

Atrophic dermatofibroma is an uncommon variant of dermatofibroma. It lacks the classic clinical features of a dermatofibroma and is often misdiagnosed. Clinically, it is characterized by inward puckering or flat lesions which on palpation become depressed or "sink in" during biopsy. Histologically, it appears similar to dermatofibroma except that it is accompanied by dermal atrophy of more than 50% of the locoregional dermis. We report two cases of dermatofibroma with atrophic features. Dermatologists should consider a diagnosis of atrophic dermatofibroma when evaluating of atrophic, depressed lesions.