1 Department of Dermatology and Venerology, Hospital Maggiore of Trieste, University of Trieste, Trieste, Italy. Electronic address: dcaposiena@hotmail.com.
2 Department of Dermatology and Venerology, Hospital Maggiore of Trieste, University of Trieste, Trieste, Italy; Department of Medicine, Institute of Dermatology, University of Udine, Udine, Italy.
3 Department of Dermatology and Venerology, Hospital Maggiore of Trieste, University of Trieste, Trieste, Italy.
4 Department of Histopathology, Cattinara Hospital of Trieste, Trieste, Italy.