title: Primary malignant peripheral nerve-sheath tumor of the common bile duct.
abstract: Primary malignant peripheral nerve-sheath tumors of the common bile duct are extremely rare. To our knowledge, the published literature contains no previous case report of this disease. Here we report on a 58-year-old Japanese woman with a primary malignant peripheral nerve-sheath tumor of the common bile duct, which was completely resected. A hypoechoic mass was identified in the hepatic hilus, using ultrasonography and computed tomography. Endoscopic retrograde cholangiography revealed a smooth stricture and deviation of the common bile duct. Laparotomy exposed a firm mass around the common bile duct that had not invaded the surrounding tissues. Partial resection of the common bile duct and cholecystectomy were performed as the treatment of choice. The final histopathological diagnosis was malignant peripheral nerve-sheath tumor arising from the wall of the common bile duct.
authors.affiliation: Gastroenterological Center, Yokohama City University Medical Center and Division of Pathology, 4-57 Urafune-cho, Minami-ku, Yokohama, 232-0024, Japan.
authors.forename: Ken-ichi
authors.initials: K
authors.lastname: Matsuo
authors.forename: Yasuhiko
authors.initials: Y
authors.lastname: Nagano
authors.forename: Kazuya
authors.initials: K
authors.lastname: Sugimori
authors.forename: Koichi
authors.initials: K
authors.lastname: Taniguchi
authors.forename: Katsuya
authors.initials: K
authors.lastname: Gorai
authors.forename: Chikara
authors.initials: C
authors.lastname: Kunisaki
authors.forename: Hideyuki
authors.initials: H
authors.lastname: Ike
authors.forename: Katsuaki
authors.initials: K
authors.lastname: Tanaka
authors.forename: Toshio
authors.initials: T
authors.lastname: Imada
authors.forename: Seiko
authors.initials: S
authors.lastname: Kamijo
authors.forename: Akinori
authors.initials: A
authors.lastname: Nozawa
authors.forename: Yukio
authors.initials: Y
authors.lastname: Nakatani
authors.forename: Yasuhiko
authors.initials: Y
authors.lastname: Miura
authors.forename: Kuniya
authors.initials: K
authors.lastname: Tanaka
authors.forename: Itaru
authors.initials: I
authors.lastname: Endo
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Sekido
authors.forename: Shinji
authors.initials: S
authors.lastname: Togo
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Shimada
mesh_terms: D002760:Cholangiopancreatography, Endoscopic Retrograde; D002763:Cholecystectomy; D003135:Common Bile Duct / Q000000981:diagnostic imaging / Q000294:innervation*; D003937:Diagnosis, Differential; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007813:Laparotomy; D008875:Middle Aged; D009186:Myelin Sheath / Q000473:pathology*; D010524:Peripheral Nervous System Neoplasms / Q000175:diagnosis* / Q000601:surgery; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography