Abstract
Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal neoplasms of the gastrointestinal (GI) tract (3). A 68-year-old male patient was referred to our hospital with complaints about feeling pressure in the thorax and heavy sweating for over 2 years. Abdominal CT showed a pathological formation approximately 21 cm × 15cm × 15 cm in size. The stomach was compressed and dislocated by the tumor. The total gastrectomy Roux modification was performed. The tumor grows from the back wall of the stomach; the tumor is not grew into the mucosa. We made a final diagnosis of an extra luminal GIST of the stomach - pT4N0M0G1R0 stage II. There was no evidence of disease recurrence six months after surgery.