PMC5422734_01
Magnetic resonance cholangiopancreatography showing a long filling defect (arrow) in the extrahepatic ducts suspicious for biliary cast.
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F1
These findings were consistent with BCS (Fig. 1).
Endoscopic retrograde cholangiopancreatography confirming the presence of a filling defect (arrow) in the slightly dilated extrahepatic ducts.
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F2
Endoscopic retrograde cholangiopancreatography confirmed the magnetic resonance cholangiopancreatography findings (Fig. 2), and endoscopic therapy was performed.
Endoscopic view of the biliary cast in the duodenum after sphincterotomy and balloon-assisted extraction.
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F3
After biliary sphincterotomy, a stone retrieval balloon was passed into the bile duct and positioned below the main hepatic confluence, inflated, and withdrawn distally to extract the cast (Fig. 3).