The incidence of bile duct carcinoma (BDC) is increasing annually with low resectability, worst prognosis and generally affects aged patients in whom the use of biliary tract stent become a treatment of choice.

• 胆管癌的发病率逐年上升，且多发生于老年病人，切除率低，预后差，对部分体质较弱的病人，胆道内支架的应用就成为治疗选择。