A Lallas1, G Argenziano2, D Ioannides3. 1. First Department of Dermatology, Aristotle University, 124 Delfon Street, 54643, Thessaloniki, Greece. emlallas@gmail.com. 2. Dermatology Unit, Second University of Naples, Naples, Italy. 3. First Department of Dermatology, Aristotle University, 124 Delfon Street, 54643, Thessaloniki, Greece.