1Department of Internal Medicine, University of Genoa and Ospedale Policlinico San Martino, Genoa, Italy
2Anatomic Pathology Unit, University of Genoa and Ospedale Policlinico San Martino, Genoa, Italy
3Di.S.Sal. Section of Dermatology, University of Genoa and Ospedale Policlinico San Martino, Genoa, Italy