Transduodenal ampullectomy for early ampullary cancer: Clinical management, histopathological findings and long-term outcomes at a single center.

Transduodenal ampullectomy is assumed to be a feasible and effective surgical procedure for the treatment of selected patients with early ampullary cancer, including patients with adenoma with high-grade dysplasia or T1 ampullary cancer which invaded the mucosal layer ampullary cancer.