B Tas1,2, E Tas3, M Sar4. 1. Bagcilar Training and Research Hospital, Department of Dermatology, Istanbul, Turkey. 2. Ataköy 7-8, Kısım, Martı sitesi, Martı 14/105, Ataköy, Istanbul, Turkey. betulavc@yahoo.com. 3. Dumlupınar Universty, Kütahya Evliya Celebi Training and Research Hospital, Department of Gastroenterology, Kütahya, Turkey. 4. Bagcilar Training and Research Hospital, Department of Pathology, Istanbul, Turkey.