Abstract
Achieving complete resection of gastric tumors near the pyloric ring with conventional endoscopic mucosal resection (EMR) or endoscopic submucosal dissection is challenging. Limited working space, inadequate assessment of the distal margin, and peristaltic movements result in incomplete resection and/or a long procedure time. Underwater EMR has been recently reported to be effective for treating colorectal and duodenal epithelial neoplasms [1] [2]. Although earlier reports described gastric underwater EMR [3], it is sometimes difficult to accumulate and maintain sufficient water in the pylorus. Herein we present a case of early gastric cancer near the pyloric ring treated with gel immersion EMR.
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