title: Hepatic Involvement of Histiocytic Sarcoma: CT and MRI Findings.
abstract: Histiocytic sarcoma in the liver is an extremely rare hematological malignancy. Herein, we reported the case of a 68-year-old woman who presented with characteristic wedge-shaped abnormality bounded by hepatic veins on computed tomography and magnetic resonance imaging of the liver. In the wedge-shaped area, decreased portal flow and the deposition of iron were observed. These imaging findings are consistent with intrasinusoidal tumor cell infiltration. A liver biopsy was performed, and histiocytic sarcoma was confirmed histopathologically.
authors: Department of Radiology, Graduate School of Medicine, University of Tokyo, Tokyo 113-8654, Japan.
authors: Takatoshi
authors: T
authors: Kubo
authors: Department of Radiology, Institute of Medical Science, University of Tokyo, Tokyo 108-8639, Japan.
authors: Shigeru
authors: S
authors: Kiryu
authors: Department of Radiology, Institute of Medical Science, University of Tokyo, Tokyo 108-8639, Japan.
authors: Hiroyuki
authors: H
authors: Akai
authors: Department of Pathology, Institute of Medical Science, University of Tokyo, Tokyo 108-8639, Japan.
authors: Yasunori
authors: Y
authors: Ota
authors: Department of Hematology and Oncology, Institute of Medical Science, University of Tokyo, Tokyo 108-8639, Japan.
authors: Arinobu
authors: A
authors: Tojo
authors: Department of Gastroenterology, Japanese Red Cross Medical Center, Tokyo 150-8935, Japan.
authors: Hideo
authors: H
authors: Yoshida
authors: Advanced Medical Science, Institute of Medical Science, University of Tokyo, Tokyo 108-8639, Japan.
authors: Naoya
authors: N
authors: Kato
authors: Department of Radiology, Institute of Medical Science, University of Tokyo, Tokyo 108-8639, Japan.
authors: Yoshiyasu
authors: Y
authors: Nakano
authors: Department of Radiology, Graduate School of Medicine, University of Tokyo, Tokyo 113-8654, Japan.
authors: Kuni
authors: K
authors: Ohtomo
mesh_terms: D000368:Aged; D001706:Biopsy; D005260:Female; D054747:Histiocytic Sarcoma / Q000000981:diagnostic imaging* / Q000473:pathology; D006801:Humans; D008113:Liver Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D008279:Magnetic Resonance Imaging / Q000379:methods; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed / Q000379:methods
keywords: Computed tomography; Histiocytic sarcoma; Liver; Magnetic resonance imaging