title: Ectopic Opening of the Common Bile Duct into the Duodenal Bulb Accompanied with Cholangitis and Gallbladder Cancer: A Report of Two Cases.
abstract: An ectopic opening of the common bile duct (CBD) into the duodenal bulb is a very rare congenital anomaly of the biliary system, which may cause recurrent duodenal ulcer or biliary diseases such as choledocholithiasis and cholangitis. Endoscopic retrograde cholangiopancreatography (ERCP) plays a major role in the diagnosis of this anomaly. We report two such cases: one in a 61-year-old man and the other in a 57-year-old man. In the first case, this anomaly caused acute cholangitis with multiple CBD stones, which were successfully treated by ERCP. In the second case, abdominal computed tomography showed pneumobilia, which was further evaluated using ERCP. Besides, this patient was diagnosed with an ectopic opening of the CBD associated with gallbladder cancer. We report these unusual cases and review the relevant medical literature.
authors.affiliation: Department of Internal Medicine, Myongji Hospital, Goyang, Korea.
authors.forename: Jae Min
authors.initials: JM
authors.lastname: Lee
authors.affiliation: Department of Internal Medicine and Institute of Health Science, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, Korea.
authors.forename: Hong Jun
authors.initials: HJ
authors.lastname: Kim
authors.affiliation: Department of Internal Medicine and Institute of Health Science, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, Korea.
authors.forename: Chang Yoon
authors.initials: CY
authors.lastname: Ha
authors.affiliation: Department of Internal Medicine and Institute of Health Science, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, Korea.
authors.forename: Hyun Ju
authors.initials: HJ
authors.lastname: Min
authors.affiliation: Department of Internal Medicine and Institute of Health Science, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, Korea.
authors.forename: Hyunjin
authors.initials: H
authors.lastname: Kim
authors.affiliation: Department of Internal Medicine and Institute of Health Science, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, Korea.
authors.forename: Tae Hyo
authors.initials: TH
authors.lastname: Kim
authors.affiliation: Department of Internal Medicine and Institute of Health Science, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, Korea.
authors.forename: Woon Tae
authors.initials: WT
authors.lastname: Jung
authors.affiliation: Department of Internal Medicine and Institute of Health Science, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, Korea.
authors.forename: Ok Jae
authors.initials: OJ
authors.lastname: Lee
keywords: Acute cholangitis; Common bile duct; Duodenal bulb; Ectopic opening; Gallbladder neoplasms