Interpretación histopatológica de biopsias por tumores melanocíticos en localizaciones especiales

Introduction and objective

Melanoma is the leading cause of death from skin cancer in the world. Despite the advances in molecular diagnosis, the differential diagnosis between melanoma and benign melanocytic tumors relies on histopathology. However, not all of the criteria for the microscopy of a biopsy of a melanocytic tumor are applicable to all locations.

Patients

We highlight these difficulties in the presentation of 2 cases of melanocytic tumors in unusual locations which were diagnostically challenging.

Results

After analyzing the relevant literature, the atypical histopathological characteristics of melanocytic tumors could be specified for unusual anatomical sites.