Gastrointestinal Radiology

, Volume 17, Issue 1, pp 58–62 | Cite as

MR imaging of malignant mesenchymal tumors of the liver

  • Kuni Ohtomo
  • Tsutomu Araki
  • Yuji Itai
  • Shuichi Monzawa
  • Hiroshi Ohba
  • Yoko Nogata
  • Toshihiko Hihara
  • Kiyoshi Koizumi
  • Gyo Uchiyama
Article

Abstract

Magnetic resonance (MR) features of five primary malignant mesenchymal neoplasms (plasmocytoma, leiomyosarcoma, undifferentiated sarcoma, epithelioid hemangioendothelioma, and angiosarcoma) of the liver were reported. All tumors were hypointense on T1-weighted images and hyperintense on T2-weighted images. No halo and intravenous extension were noted. A target appearance was revealed in epithelioid hemangioendothelioma. MR findings of angiosarcoma were essentially the same as those of cavernous hemangiomas (markedly hyperintense with hypointense linear septa on T2-weighted images). MR findings of these rare hepatic malignancies were nonspecific, although they were quite different from those of typical hepatocellular carcinomas. This study suggested that MR differentiation of primary hepatic mesenchymal tumors from other common benign and malignant neoplasms was difficult; however, the number of studied cases was limited.

Key words

Liver neoplasms, diagnosis Liver neoplasms, MR studies Liver, MR studies Sarcoma 

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Copyright information

© Springer-Verlag New York Inc. 1992

Authors and Affiliations

  • Kuni Ohtomo
    • 1
  • Tsutomu Araki
    • 2
  • Yuji Itai
    • 3
  • Shuichi Monzawa
    • 1
  • Hiroshi Ohba
    • 1
  • Yoko Nogata
    • 1
  • Toshihiko Hihara
    • 1
  • Kiyoshi Koizumi
    • 1
  • Gyo Uchiyama
    • 1
  1. 1.Department of RadiologyYamanashi Medical CollegeYamanashiJapan
  2. 2.Department of RadiologyUniversity of TokyoTokyo
  3. 3.Department of RadiologyUniversity of TukubaIgaragiJapan

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