Inflammatory pseudotumor of the liver in a patient with rectal cancer: a case report.
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.
Saito
Kazuhiro
K
Department of Radiology, Tokyo Medical University, Kasumigaura Hospital, Ibaraki, Japan. saito-k@tokyo-med.ac.jp
Kotake
Fumio
F
Ito
Naoki
N
Tabuchi
Takafumi
T
Goto
Yoshihisa
Y
Katano
Motonobu
M
Hashimoto
Tsuyoshi
T
Abe
Kimihiko
K
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