Abstract

Gastrointestinal stromal tumors (GISTs) are rare, accounting forless than 3% of ali gastrointestinal neoplasms and less than 6% of ali sarcomas (1-3). İn the past, mesenchymal tumors ofthe gastrointestinal tract were usually classified as ieiomyomas or ieiomyosarcomas (4-5). GISTs can originate in the gastrointestinal tract, mesentery, or omentum (1). They typically arise in the bowel wall, usually from the muscularis propria. The most common sites of presentation for GISTs are the stomach and small bowel but rarely other parts. Retroperitoneal localisation is very low (1).