| Summary: | <p>The gastrointestinal stroma tumor is an infrequent type of tumor of mesenchymal origin called sarcoma. It appears in the wall of the digestive lobe, the stomach, the small intestine, the colon, the esophagus and occasionally in the omentum, mesenteric and retroperitoneal. This study presents the case of a 52-year-old male patient who was admitted with a history of 6-month pains in the epigastrium. On physical examination a tumor of about 15 centimeters was found in the epigastrium characterized by being hard, fixed, painful, and with no peritoneal reaction. A pancreatic cancer was diagnosed. Exploratory laparotomy was performed finding a tumor of about 20 centimeters in the front side of the gastric greater curvature with an exophytic growth covered by the omentum, depending on the stomach in approximately 1 centimeter. There were no abdominal adenopathies or hepatic metastasis. A distal subtotal gastrectomy with omentectomy was performed. The intestinal way is restored with gastrojejunostomy in the loop of Braun and closing of the duodenal papillae. The patient progressed satisfactorily and is now asymptomatic.</p>
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