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The Role of Peroral Cholangioscopy in Evaluating Indeterminate Biliary Strictures
Nasim Parsa,Mouen A. Khashab 대한소화기내시경학회 2019 Clinical Endoscopy Vol.52 No.6
Biliary strictures are considered indeterminate when the initial radiologic evaluation and endoscopic retrogradecholangiopancreatography with brush cytology and/or forceps biopsy do not reveal diagnostic findings. Evaluation of these stricturesis challenging and often requires a multidisciplinary approach and multiple procedures. Peroral cholangioscopy allows directvisualization of these lesions and targeted tissue acquisition using miniature biopsy forceps. In the past decade, there have beensignificant improvements in the field of cholangioscopy. These advances have allowed higher-quality image acquisition, easy setup,operation by a single operator, easy maneuverability, and excellent targeted tissue sampling performance. However, the interpretationof cholangioscopic visual findings remains challenging. In this review, we discuss the role of peroral cholangioscopy in the evaluation ofindeterminate biliary strictures.