Biliary reflux detection in anomalous union of the pancreatico-biliary duct patients

Figure 4 A 35-year-old woman with a type Ia choledochal cyst and multiple common bile duct stones. A: Fusiform dilatation of the extrahepatic bile duct is seen on T2-magnetic resonance cholangiography (MRC) and multiple nodular filling defects (arrows) are seen in the common bile duct (CBD) which represent CBD stones; B: Contrast media did not pass through the ampulla of Vater until 30 min after fatty meal ingestion and multiple CBD stones are not seen due to masking by contrast media with high signal intensity.