Endoscopic submucosal dissection using scissors-type knife for a giant solitary duodenal polyp

Resection of giant pedunculated duodenal polyps is challenging. En bloc resection is preferred because of the risk of invasive cancer. EMR carries a significant risk of bleeding and perforation and may not be feasible when polyps are large. Traditional endoscopic submucosal dissection (ESD) carries a significant risk of perforation owing to the thin muscular layer of the duodenal wall and poor endoscopic operability. A scissors-type ESD knife...