Gastrointestinal stromal tumour (GIST) mimicking polypoid process of the papilla of Vater

GIST is of mesenchymal origin. The localization of GIST is mostly the stomach, duodenum, colon, and rarely the oesophagus and retroperitonium. Their size varies from 1–2mm to 40cm. GIST is mostly solitaire. The clinical characteristics of GIST are abdominal discomfort, pain, palpable tumour, bleeding and anaemia, and sometimes, obstructive jaundice, ileus or perforation. Case report: At her first observation, the 67 year-old women had gastroduodenoscopy, where a large tumour was found in the duodenum at the level of the papilla of Vater. Although, the patient had no cholestatic laboratory findings and abdominal…