1 Unidad de Lesiones Pigmentadas Pigmentadas, Cátedra de Dermatología, Hospital de Clínicas, Universidad de la República, Montevideo, Uruguay.
2 The Center for Cancer Prevention and Treatment, Katowice, Poland.
3 Skin Cancer Unit, Arcispedale Santa Maria Nuova IRCCS, Reggio Emilia, Italy.
4 Department of Pathology, Silesian Medical Center, Silesian Medical University, Katowice, Poland.
5 Unidad de Dermatopatología, Cátedra de Dermatología, Hospital de Clínicas, Universidad de la República, Montevideo, Uruguay.
6 Department of Conventional and Intraoperative Radiotherapy Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology Gliwice Branch, Gliwice, Poland.
7 Department of Dermatology, Medical University of Graz, Graz, Austria.