Abstract
Recently, some complications involving the bile duct or pancreatic duct have been reported in patients with choledochal cyst. In this series, complications involving the bile duct or pancreatic duct in patients with choledochal cyst treated in our institution from April 1995 to December 2013 were investigated. Moreover, the shapes of the bile duct or pancreatic duct in these patients were evaluated. Five cases of bile duct complications and 3 cases of pancreatic duct complications were identified. Three cases of bile duct complications were associated with intrahepatic bile duct stones. In these 3 cases, intrahepatic bile duct dilation and intrahepatic bile duct stricture were found during a definitive operation. In 2 cases of pancreatic duct complications, a protein plug was identified in a common channel in the patients who pancreatitis after a definitive operation. Regarding the shape of the connection of their bile duct and pancreatic duct examined during a definitive operation, a very narrow distal bile duct was connected to a dilated common channel, and a protein plug was observed in that common channel. Another case of pancreatic duct complication was caused by incomplete pancreas divisum, and endoscopic sphincterotomy of the minor duodenal papilla was performed. Patients having a dilated common channel containing a protein plug detected during the definitive operation may have a risk of pancreatitis after operation and should be monitored closely.
