A Case of Early Gastric Cancer Resected Completely by Diagnostic Endoscopic Mucosal Resection Presented as Large Gastric Ulcer Bleeding

During the life cycle of early gastric cancer, some malignant ulcers may undergo partial or complete mucosal repair. Endoscopic visualization alone cannot reliably discriminate benign from malignant gastric ulcers. A 45-year-old man visited our hospital complaining of hematemesis. Endoscopy revealed a 2x2 cm sized, deep ulcer with adherent clots at the posterior wall of the gastric body. Proton pump inhibitor was prescribed for 2 months. Diagnostic endoscopic mucosal resection was performed. Histology revealed an early gastric cancer involving the lamina propria which was resected completely.