title: [Primary adenosquamous carcinoma of the liver presenting with hematochezia due to tumor invasion of the colon].
abstract: A 69-year-old female was referred to our hospital with hematochezia. Dynamic computed tomography demonstrated a large tumor with rim enhancement and central necrosis that invaded into the transverse colon. The tumor was resected, and histopathological examination revealed mixed adenocarcinoma and squamous cell carcinoma with partial abscess formation. On the basis of a literature review and the findings from the present case, rim enhancement with central necrosis on imaging appears to be characteristic of this disease.
authors.affiliation: Department of Gastroenterology and Hepatology, Kohnodai Hospital, National Center for Global Health and Medicine.
authors.forename: Tsutomu
authors.initials: T
authors.lastname: Takeda
authors.forename: Kazumoto
authors.initials: K
authors.lastname: Murata
authors.forename: Mami
authors.initials: M
authors.lastname: Ikeda
authors.forename: Naru
authors.initials: N
authors.lastname: Chatani
authors.forename: Masanori
authors.initials: M
authors.lastname: Kobayashi
authors.forename: Yoshihiko
authors.initials: Y
authors.lastname: Aoki
authors.forename: Teppei
authors.initials: T
authors.lastname: Matsui
authors.forename: Masaaki
authors.initials: M
authors.lastname: Korenaga
authors.forename: Masatoshi
authors.initials: M
authors.lastname: Imamura
authors.forename: Naohiko
authors.initials: N
authors.lastname: Masaki
authors.forename: Yoichiro
authors.initials: Y
authors.lastname: Aoki
authors.forename: Toshiko
authors.initials: T
authors.lastname: Ogami
authors.forename: Tomoyuki
authors.initials: T
authors.lastname: Yada
authors.forename: Hitohiko
authors.initials: H
authors.lastname: Koizuka
authors.forename: Nobuyoshi
authors.initials: N
authors.lastname: Aoyanagi
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Ishida
authors.forename: Sumio
authors.initials: S
authors.lastname: Watanabe
authors.forename: Naomi
authors.initials: N
authors.lastname: Uemura
authors.forename: Masashi
authors.initials: M
authors.lastname: Mizokami
mesh_terms: D000368:Aged; D018196:Carcinoma, Adenosquamous / Q000150:complications / Q000175:diagnosis / Q000473:pathology*; D003108:Colonic Diseases / Q000209:etiology*; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D006801:Humans; D008113:Liver Neoplasms / Q000150:complications / Q000175:diagnosis / Q000473:pathology*; D009361:Neoplasm Invasiveness