title: Cholangiocarcinoma in choledochal cyst after cystoenterostomy: how a mistreated choledochal cyst can progress to malignancy.
abstract: This case report presents an unusual case of cholangiocarcinoma arising nearly 35 years after cystoduodenostomy for choledochal cyst. The patient visited our hospital with dyspepsia and studies revealed bezoar within the choledochal cyst caused by bile and food reflux. The patient underwent pancreaticoduodenectomy and a biopsy revealed adenocarcinoma, stage IIB. After 19 months, the patient has no recurrence to date and has recovered well. This case shows that proper surgical management and meticulous, long-term follow-up is imperative for patients with congenital choledochal cyst.
authors.affiliation: Department of Surgery, Busan Paik Hospital, College of Medicine, Inje University, Busan, Korea.
authors.forename: HyungJoo
authors.initials: H
authors.lastname: Baik
authors.affiliation: Department of Surgery, Busan Paik Hospital, College of Medicine, Inje University, Busan, Korea.
authors.forename: Yo-Han
authors.initials: YH
authors.lastname: Park
authors.affiliation: Department of Surgery, Busan Paik Hospital, College of Medicine, Inje University, Busan, Korea.
authors.forename: Sang Hyuk
authors.initials: SH
authors.lastname: Seo
authors.affiliation: Department of Surgery, Busan Paik Hospital, College of Medicine, Inje University, Busan, Korea.
authors.forename: Min Sung
authors.initials: MS
authors.lastname: An
authors.affiliation: Department of Surgery, Busan Paik Hospital, College of Medicine, Inje University, Busan, Korea.
authors.forename: Kwang Hee
authors.initials: KH
authors.lastname: Kim
authors.affiliation: Department of Surgery, Busan Paik Hospital, College of Medicine, Inje University, Busan, Korea.
authors.forename: Ki Beom
authors.initials: KB
authors.lastname: Bae
authors.affiliation: Department of Surgery, Busan Paik Hospital, College of Medicine, Inje University, Busan, Korea.
authors.forename: Chang Soo
authors.initials: CS
authors.lastname: Choi
authors.affiliation: Department of Surgery, Busan Paik Hospital, College of Medicine, Inje University, Busan, Korea.
authors.forename: Sang Hoon
authors.initials: SH
authors.lastname: Oh
authors.affiliation: Department of Surgery, Busan Paik Hospital, College of Medicine, Inje University, Busan, Korea.
authors.forename: Young Kil
authors.initials: YK
authors.lastname: Choi
keywords: Cholangiocarcinoma; Choledochal cyst; Pancreaticoduodenectomy