title: A case of primary adenosquamous carcinoma of the liver presented with liver abscess.
abstract: Primary adenosquamous carcinoma of the liver is a very rare type of cholangiocarcinoma and is defined as a cancer containing both squamous and adenomatous components in the same lesion. Recently, we experienced a primary adenosquamous carcinoma of the liver presented as liver abscess. A 63-year-old man was presented with a 4-day history of fever and chill. The radiologic study showed a 4 cm-sized, central hypoattenuated mass with peripheral rim enhancement in the left lobe of the liver. Ultrasonography-guided aspiration and biopsy suggested an adenocarcinoma with abscess in the liver. At laparotomy, the tumor occupied the left lobe of the liver and invaded the right diaphragm. An extended left lobectomy and a partial excision of the involved diaphragm were done. Grossly, the tumor was 6 x 5 x 5 cm in size and had an eccentric necrosis. Microscopically, the tumor was composed of adenocarcinoma and squamous cell carcinoma with a transitional area.
authors.affiliation: Department of Internal Medicine, Korea University, Ansan Hospital, 516 Kojan-Dong, Ansan City, Kyungki-Do, 425-020, Korea.
authors.forename: O S
authors.initials: OS
authors.lastname: Kwon
authors.forename: H S
authors.initials: HS
authors.lastname: Lee
authors.forename: D W
authors.initials: DW
authors.lastname: Koh
authors.forename: Y J
authors.initials: YJ
authors.lastname: Cho
authors.forename: Y H
authors.initials: YH
authors.lastname: Park
authors.forename: D K
authors.initials: DK
authors.lastname: Park
authors.forename: Y L
authors.initials: YL
authors.lastname: Oh
authors.forename: J H
authors.initials: JH
authors.lastname: Seo
authors.forename: H J
authors.initials: HJ
authors.lastname: Chun
authors.forename: S H
authors.initials: SH
authors.lastname: Um
authors.forename: S W
authors.initials: SW
authors.lastname: Lee
authors.forename: J H
authors.initials: JH
authors.lastname: Choi
authors.forename: C D
authors.initials: CD
authors.lastname: Kim
authors.forename: H S
authors.initials: HS
authors.lastname: Ryu
authors.forename: J H
authors.initials: JH
authors.lastname: Hyun
authors.forename: A R
authors.initials: AR
authors.lastname: Kim
authors.forename: Y S
authors.initials: YS
authors.lastname: Kim
mesh_terms: D018196:Carcinoma, Adenosquamous / Q000150:complications* / Q000473:pathology / Q000601:surgery; D006801:Humans; D008100:Liver Abscess / Q000209:etiology*; D008113:Liver Neoplasms / Q000150:complications* / Q000473:pathology / Q000601:surgery; D008297:Male; D008875:Middle Aged