Difficulties in differential diagnosis of atypical forms of dermatofibroma and melanoma (clinical case)

Abstract

Dermatofibroma is a benign, often occurring, mesenchymal tumor with extremely low malignant potential. In rare cases, the transformation of this formation into a dermatofibrosarcoma is possible. Dermatofibroma is characterized by a wide range of clinical manifestations due to the abundance of morphological options. Typical variants of diagnostic difficulties usually do not cause. However, atypical forms of dermatofibroma can clinically and dermatoscopically mimic another aggressive tumor, melanoma.