Simona Kordeva, Onkoderma-Clinic for Dermatology, Venereology and Dermatologic Surgery, Sofia, Bulgaria Ilia Batashki, Department of Dermatology and Venereology, Sofia, Bulgaria Georgi Tchernev, Onkoderma-Clinic for Dermatology, Venereology and Dermatologic Surgery; Department of Dermatology and Venereology, Medical Institute of Ministry of Interior, Sofia, Bulgaria