title: Diffuse intrahepatic bile duct dilation caused by a very small hepatic cyst.
abstract: A 72-year-old woman presented to our hospital with diffuse dilation of the intrahepatic bile ducts. Imaging studies revealed a solitary hepatic cyst, 3 cm in diameter, in segment 4 of Couinaud's category of the liver, riding on the hilar hepatic duct. Deroofing of the hepatic cyst was performed, and the dilation of the intrahepatic bile ducts was attenuated. We concluded that even a very small solitary hepatic cyst might cause stenosis of the common hepatic duct, if it is located just above the hepatic hilum.
authors.affiliation: Department of Surgery, Faculty of Medicine, Teikyo University, Tokyo, Japan.
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Inaba
authors.forename: Ikuo
authors.initials: I
authors.lastname: Nagashima
authors.forename: Fujio
authors.initials: F
authors.lastname: Ogawa
authors.forename: Minetoshi
authors.initials: M
authors.lastname: Tomioka
authors.forename: Kota
authors.initials: K
authors.lastname: Okinaga
mesh_terms: D000368:Aged; D001653:Bile Ducts, Intrahepatic / Q000000981:diagnostic imaging / Q000473:pathology*; D002758:Cholangiography; D003560:Cysts / Q000150:complications* / Q000601:surgery; D004108:Dilatation, Pathologic; D005260:Female; D006801:Humans; D008107:Liver Diseases / Q000150:complications* / Q000601:surgery; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography