1 Unit of Dermatology, Luigi Vanvitelli University of Campania, Naples, Italy - piccolo.vincenzo@gmail.com.
2 Unit of Dermatology, Maggiore Hospital, University of Trieste, Trieste, Italy.
3 Unit of Dermatology, Ospedale di Udine, Udine, Italy.
4 Unit of Dermatology, Luigi Vanvitelli University of Campania, Naples, Italy.
5 Center of Reference for Neurofibromatosis, Department of Women, Children and General and Specialist Surgery, Luigi Vanvitelli University of Campania, Naples, Italy.
6 Unit of Pathology, Department of Mental and Physical Health and Preventive Medicine, Luigi Vanvitelli University of Campania, Naples, Italy.
7 Department of Anesthesiology, Surgery and Emergency, Luigi Vanvitelli University of Campania, Naples, Italy.