[Histopathological interpretation of biopsies for melanocytic tumours in unusual locations]

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.

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

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