1. Division of Melanoma, Sarcoma and Rare Tumors IRCCS, European Institute of Oncology Milan Italy
2. Unit of Dermatology, Department of Experimental Diagnostic and Specialty Medicine Policlinico Sant' Orsola‐Malpighi, University of Bologna Bologna Italy
3. Unit of Preventive Gynecology IRCCS, European Institute of Oncology Milan Italy
4. Pathology Division IRCCS, European Institute of Oncology Milan Italy
5. Unit of Dermatology USL Toscana Centro‐Prato Hospital Prato Italy