牛超慧

Endoscopic “Two-Step Method” for resection of a large tumor at the major duodenal papilla

Rationale: Endoscopic papillectomy is the standard treatment for noninvasive tumors of the ampulla of Vater. However, reports on the endoscopic resection of large tumors at the major duodenal papilla are rare. The “two-step” endoscopic approach described herein represents the fir...