title: Diverticular Choledochal Cyst with a Large Impacted Stone Masquerading as Mirizzi's Syndrome.
abstract: Choledochal cysts are congenital anomalies of the biliary tract manifested by cystic dilatation of the extrahepatic and intrahepatic bile ducts. Choledochal cyst is not rare in far-East Asian countries. Type II choledochal cysts account for 2% of all such cysts. They are true diverticula of the extrahepatic bile duct and communicate with the bile duct through a narrow stalk. This condition is associated with significant complications, such as ductal strictures, stone formation, cholangitis, rupture and secondary biliary cirrhosis. We describe a case of a huge impacted stone in a diverticular choledochal cyst which masqueraded as an unusual cystic duct stone causing Mirizzi's syndrome.
authors.affiliation: Department of Internal Medicine, Soon Chun Hyang University College of Medicine, Cheonan Hospital, Cheonan, Republic of Korea.
authors.forename: Soon Oh
authors.initials: SO
authors.lastname: Hwang
authors.forename: Tae Hoon
authors.initials: TH
authors.lastname: Lee
authors.forename: Sang Ho
authors.initials: SH
authors.lastname: Bae
authors.forename: Dong Jae
authors.initials: DJ
authors.lastname: Han
authors.forename: Han Min
authors.initials: HM
authors.lastname: Lee
authors.forename: Sang-Heum
authors.initials: SH
authors.lastname: Park
authors.forename: Chang Ho
authors.initials: CH
authors.lastname: Kim
authors.forename: Sun-Joo
authors.initials: SJ
authors.lastname: Kim
keywords: Cholangitis; Choledochal cyst; Mirizzi's syndrome