1. Dermatology Unit Ospedale Policlinico San Martino Largo R. Benzi 10 16132 Genoa Italy
2. DI.S.Sal., Section of Dermatology University of Genoa Via Pastore 1 16132 Genoa Italy
3. Radiology Department Fondazione IRCCS Policlinico San Matteo Medical School, University of Pavia Pavia Italy