title: Inflammatory pseudotumor of the liver in a patient with rectal cancer: a case report.
abstract: An inflammatory pseudotumor of the liver was discovered during a metastatic examination of a patient with rectal adenocarcinoma. Magnetic resonance imaging showed a three-component lesion that infiltrated a large portal vein, and CT arteriography and CT during arterial portography showed a portal obstruction. A histopathological examination proved that necrosis was present in the central zone; infiltration by proliferating connective tissue with chronic inflammatory cells was prominent in the middle zone; and fibrous changes, including pseudo-bile duct proliferation, were present in the peripheral zone. Magnetic resonance imaging revealed both portal infiltration and histopathological features including the above-noted three components. Magnetic resonance imaging is perhaps the most useful diagnostic modality.
authors.affiliation: Department of Radiology, Tokyo Medical University, Kasumigaura Hospital, Ibaraki, Japan. saito-k@tokyo-med.ac.jp
authors.forename: Kazuhiro
authors.initials: K
authors.lastname: Saito
authors.forename: Fumio
authors.initials: F
authors.lastname: Kotake
authors.forename: Naoki
authors.initials: N
authors.lastname: Ito
authors.forename: Takafumi
authors.initials: T
authors.lastname: Tabuchi
authors.forename: Yoshihisa
authors.initials: Y
authors.lastname: Goto
authors.forename: Motonobu
authors.initials: M
authors.lastname: Katano
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Hashimoto
authors.forename: Kimihiko
authors.initials: K
authors.lastname: Abe
mesh_terms: D001706:Biopsy / Q000379:methods; D003937:Diagnosis, Differential; D006104:Granuloma, Plasma Cell / Q000175:diagnosis* / Q000601:surgery; D006801:Humans; D008113:Liver Neoplasms / Q000175:diagnosis* / Q000601:surgery; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged