title: [A case of adenosquamous carcinoma of the papilla of Vater].
abstract: Adenosquamous carcinoma of the papilla of Vater is a rare tumor and only a few cases have been reported so far. Here, we report a case of adenosquamous carcinoma in a 76-year-old male who presented with jaundice and right upper quadrant abdominal pain. Ultrasonography and enhanced abdominal CT scans showed dilated common bile duct (CBD) and intrahepatic bile duct (IHD) with a suspicious obstructing mass in distal CBD. On endoscopy, obstructing and ulcerated mass was noted on the papilla of Vater. Histopathological inspection of the biopsied specimens from mass showed adenosquamous cell carcinoma of the papilla of Vater. Since the patient refused operation, we inserted a self-expandable metallic stent in distal CBD. This is the first case report on adenosquamous carcinoma of the papilla of Vater in Korea.
authors.affiliation: Department of Internal Medicine, Hallym University College of Medicine, Dongan-gu, Anyang, Korea.
authors.forename: Hae Geun
authors.initials: HG
authors.lastname: Song
authors.forename: Kyo-Sang
authors.initials: KS
authors.lastname: Yoo
authors.forename: Na Rae
authors.initials: NR
authors.lastname: Ju
authors.forename: Jin Chul
authors.initials: JC
authors.lastname: Park
authors.forename: Jae One
authors.initials: JO
authors.lastname: Jung
authors.forename: Woon Geon
authors.initials: WG
authors.lastname: Shin
authors.forename: Joon Ho
authors.initials: JH
authors.lastname: Moon
authors.forename: Jong Pyo
authors.initials: JP
authors.lastname: Kim
authors.forename: Kyoung Oh
authors.initials: KO
authors.lastname: Kim
authors.forename: Cheol Hee
authors.initials: CH
authors.lastname: Park
authors.forename: Taeho
authors.initials: T
authors.lastname: Hahn
authors.forename: Sang Hoon
authors.initials: SH
authors.lastname: Park
authors.forename: Jong Hyeok
authors.initials: JH
authors.lastname: Kim
authors.forename: In Jae
authors.initials: IJ
authors.lastname: Lee
authors.forename: Soo Kee
authors.initials: SK
authors.lastname: Min
authors.forename: Choong Kee
authors.initials: CK
authors.lastname: Park
mesh_terms: D000368:Aged; D014670:Ampulla of Vater / Q000473:pathology*; D018196:Carcinoma, Adenosquamous / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D002454:Cell Differentiation; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D014057:Tomography, X-Ray Computed