1. Department of Skin and Venereal Diseases, School of Medicine, University of Ioannina and University Hospital of Ioannina, 45110 Ioannina, Greece
2. Department of Pathology, School of Medicine, University of Ioannina and University Hospital of Ioannina, 45110 Ioannina, Greece
3. Department of Clinical Radiology, School of Medicine, University of Ioannina and University Hospital of Ioannina, 45110 Ioannina, Greece