Tumor mimicking gastric ulcer penetrating asymptomatically into the pancreas

Gastroduodenal ulcer disease is characterized by ulceration of the stomach or duodenum, with ulcer lesions occurring more frequently in the duodenum. Serious complications of this disease include bleeding, perforation of the ulcer and penetration into surrounding organ. Our report presents the case of an older man who had a gastric ulcer penetrating into the pancreas. This was not diagnosed at the time of the penetration. The patient came to our care for recurrent hematemesis without a proven source of bleeding. During the diagnostic process, the presence of an intramural gastric tumor was suspected. An excision of the suspected lesion was successfully performed at our clinic, followed by histological confirmation of perforated ulcer. The postoperative course was complicated by the development of a pancreatic fistula. However, conservative treatment resulted in complete recovery of the patient.