Anomalous excretion of bile and pancreatic juice in a patient with choledochal cyst.

The authors report the findings of endoscopic retrograde cholangiopancreatography in a 1-year-old girl with choledochal cyst; contrast dye injected through the common channel was excreted solely through the duct of Santorini. The obstruction to the bile and pancreatic juice caused by marked bending of the common channel was responsible for the abnormal drainage of bile and pancreatic juice.