Type IVB Choledochal Cyst : A case report

ABSTRACT

Cystic malformations of the common bile duct have usually been found to occur in the extrahepatic portion of the common bile duct. A rare type occurs at the terminal end of the common bile duct and lies in the intraluminal portion of the duodedum; this latter type has been called a choledochocele. The lesion is undoubtedly congenital. The case of an extrahepatic choledochal cyst and choledochocele (type IVB choledochal cyst in the Totani classification) in a 63-year-old woman is presented. This is rare, combined choledochal cyst.