Bulent Yilmaz1, Selma Cukur2, Rula Sahin3. 1. Department of Gastroenterology, Bolu Izzet Baysal State Hospital, Bolu, Turkey. 2. Department of Pathology, Bolu Izzet Baysal State Hospital, Bolu, Turkey. 3. Department of Radiology, Bolu Izzet Baysal State Hospital, Bolu, Turkey.