Stomach gastrointestinal stromal tumours (GIST) intussuscepted into duodenum : a case report.

Gastrointestinal stromal tumours (GIST) are tumours of gastrointestinal tract and mesentery. The commonest site of its occurrence is the stomach. Patients with GIST are usually asymptomatic but they can present as abdominal pain, bleeding and rarely gastric outlet obstruction.