Bile duct cyst other imaging findings

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

Cholescintigraphy (HIDA scans) is also quite useful for all but Type III choledochoceles. Findings include biliary tract dilatation and tracer retention after 24 hours. It gives data on excretory function, which is also useful post surgical repair.
Endoscopic Retrograde Cholangio-Pancreatography (ERCP) provides excellent visualization.
ERCP is particularly useful for type III choledochoceles, demonstrating a clubbed distal common bile duct (CBD) and a round, cyst-like, contrast-filled structure in the terminal CBD often extending into the duodenal lumen.
Magnetic resonance cholangiopancreatography (MRCP) is also a available for evaluation.