Superior diaphragmatic adenopathy from primary hepatocellular carcinoma.

Choledochal cysts are associated with abnormal pancreatobiliary ductal union (APBDU) in about 90% of cases. 9 We could not demonstrate whether the present case was associated with APBDU or not. We did not perform an endoscopic retrograde cholangiopancreatography because the diagnosis had been made on MRCP, and demonstration of APBDU could not have changed the management decision and could have introduced infection into an obstructed biliary system. The MRCP films did not provide information about APBDU, although it has been shown recently that MRCP can diagnose APBDU. 10