C Giorgini1, V Barbaccia1, G A Croci2, I Imarisio3, C Vassallo1. 1. Institute of Dermatology, Department of Clinical-Surgical, Diagnostic and Pediatric Science, Fondazione IRCCS Policlinico San Matteo, University of Pavia, Pavia, Italy. 2. Department of Pathology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy. 3. Department of Medical Oncology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy.