A 54-year-old woman was referred to us for investigation of recurrent episodes of melena. Gastroduodenal endoscopic examination revealed a hemorrhagic, polypoid tumor, about 3 cm in diameter, in the posterior wall of the gastric antrum, near the greater curvature. The lesion had a smooth surface with ulceration, and was fixed to the sublying planes. The source of the bleeding was the mucosa overlying the tumor. We performed a distal subtotal gastrectomy with Roux-en-Y anastomosis. Histopathological examination of the resected specimen revealed an ectopic pancreas and a gastrointestinal stromal tumor contiguous to the ectopic pancreatic tissue in the gastric antrum. The patient was discharged after an uneventful postoperative course and has not experienced any recurrence of symptoms since.