1 Department of Health Sciences, University of Genoa, Genoa, Italy; Dermatology Unit, San Martino Polyclinic Hospital, Genoa, Italy.
2 Department of Health Sciences, University of Genoa, Genoa, Italy; Dermatology Unit, San Martino Polyclinic Hospital, Genoa, Italy. emanuele.cozzani@unige.it.
3 Pathology Unit, San Martino Polyclinic Hospital, Genoa, Italy.