B Tekin1, E S Denli Yalvac2, T Zenginkinet3. 1. Department of Dermatology, Medeniyet University, Goztepe Research and Training Hospital, Istanbul, Turkey. 2. Department of Cardiovascular Surgery, Medeniyet University, Goztepe Research and Training Hospital, Istanbul, Turkey. 3. Department of Pathology, Medeniyet University, Goztepe Research and Training Hospital, Istanbul, Turkey.