消化内镜在恶性胆管狭窄诊断中的应用

准确鉴别胆管狭窄的良恶性病因对治疗和预后有重要的临床意义。实验室检查、非侵入性影像学检查难以明确狭窄良恶性。内镜逆行胆胰管造影(ERCP)是目前应用最广泛的诊断胆道梗阻的方法，内镜超声和经口胆道镜的发展提高了胆道狭窄的诊断率，新的光学成像技术不断涌现，ERCP 为主导的多种内镜联合是目前胆管狭窄诊断的常用方案。本文就消化内镜在恶性胆管狭窄诊断中的应用作一综述。

The application of endoscopy in the diagnosis of malignant bile duct stricture

Accurate differentiation of benign and malignant causes of bile duct stricture has important clinical significance for treatment and prognosis. Laboratory examination and non-invasive imaging examination are difficult to accurately distinguish benign and malignant strictures. Endoscopic retrograde cholangiopancreatography (ERCP) is the most widely used method for the diagnosis of biliary obstruction. The development of endoscopic ultrasound and transoral choledochoscopy has improved the diagnosis rate of biliary stricture. New optical imaging techniques continue to emerge. The combination of multiple endoscopes dominated by ERCP is a common scheme for the diagnosis of bile duct stricture. This article reviews the application of endoscopy in the diagnosis of malignant bile duct stricture.