title: Obstructive Jaundice Due to Hilar Bile Duct Compression with Encasement of the Right Hepatic Artery.
abstract: A 68-year-old woman had a solitary 12.0 cm hepatic cyst with a septum. The cyst was located near the hepatic hilum and she presented with obstructive jaundice caused by compression of the hilar bile duct. Stenosis of the common hepatic duct was detected at the porta hepatis on endoscopic retrograde cholangiography (ERC), and encasement of the right hepatic artery at the same level was revealed by abdominal angiography. Transpapillary cholangioscopy showed compression and mucosal erosions of the hilar bile duct. After transpapillary cholangioscopy, the hepatic cyst became infected, for which emergency percutaneous transhepatic drainage was performed. As a result, the patient's obstructive jaundice subsided. The mucosal erosions of the bile duct that existed at a site corresponding to the encasement of the right hepatic artery also improved. In conclusion, bile duct stenosis was considered to be caused by compression due to the hepatic cyst and the right hepatic artery.
authors.affiliation: Department of Surgery, Jikei University School of Medicine, Tokyo, Japan.
authors.forename: Ryusuke
authors.initials: R
authors.lastname: Ito
authors.affiliation: Department of Surgery, Jikei University School of Medicine, Tokyo, Japan.
authors.forename: Yuji
authors.initials: Y
authors.lastname: Ishii
authors.affiliation: Department of Surgery, Jikei University School of Medicine, Tokyo, Japan.
authors.forename: Tadashi
authors.initials: T
authors.lastname: Uwagawa
authors.affiliation: Department of Surgery, Jikei University School of Medicine, Tokyo, Japan.
authors.forename: Shigeki
authors.initials: S
authors.lastname: Wakiyama
authors.affiliation: Department of Surgery, Jikei University School of Medicine, Tokyo, Japan.
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Shiba
authors.affiliation: Department of Surgery, Jikei University School of Medicine, Tokyo, Japan.
authors.forename: Takeyuki
authors.initials: T
authors.lastname: Misawa
authors.affiliation: Department of Surgery, Jikei University School of Medicine, Tokyo, Japan.
authors.forename: Yuichi
authors.initials: Y
authors.lastname: Ishida
authors.affiliation: Department of Endoscopy, Jikei University School of Medicine, Tokyo, Japan.
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Kakutani
authors.affiliation: Department of Radiology, Jikei University School of Medicine, Tokyo, Japan.
authors.forename: Shunichi
authors.initials: S
authors.lastname: Sadaoka
authors.affiliation: Department of Surgery, Jikei University School of Medicine, Tokyo, Japan.
authors.forename: Katsuhiko
authors.initials: K
authors.lastname: Yanaga
keywords: Cholangioscopy; Hepatic cyst; Hilar bile duct; Obstructive jaundice; Right hepatic artery