1. Skin Cancer Unit Arcispedale S. Maria Nuova‐IRCCS Viale Risorgimento 80 42123 Reggio Emilia Italy
2. Dermatology Unit University of Modena and Reggio Emilia Largo del Pozzo, 71 41125 Modena Italy
3. Pathology Unit Arcispedale S. Maria Nuova‐IRCCS Viale Risorgimento 80 42123 Reggio Emilia Italy
4. Dermatology Unit Second University of Naples Viale Abramo Lincoln, 5 81100 Caserta Italy
5. First Department of Dermatology of Aristotle University of Thessaloniki 54124 Thessaloniki Greece
6. Breast Unit Arcispedale S. Maria Nuova‐IRCCS Viale Risorgimento 80 42123 Reggio Emilia Italy