Hepatic metastases from leiomyosarcoma: MR features with histopathologic correlation

P. Soyer, M. Riopel, D. A. Bluemke, A. Scherrer

Research output: Contribution to journalArticlepeer-review

Abstract

Background: To determine the magnetic resonance (MR) imaging features of hepatic metastases from leiomyosarcoma and determine the pathologic basis for the MR appearance of these neoplasms. Methods: MR examinations of eight patients with a total of 16 hepatic metastases from leiomyosarcoma were retrospectively reviewed. Hepatic metastases originated from a primary gastrointestinal (n = 6), uterine (n = 1), or retroperitoneal (n = 1) leiomyosarcoma. Correlation between MR features and pathologic findings was performed in 11 metastases from which histologic material was obtained. Results: Among the 10 metastases seen on T1-weighted MR images, nine were homogeneous and one was heterogeneous. The latter contained areas of necrosis and hemorrhage on pathologic examination. Among the 16 metastases seen on T2- weighted MR images, 12 were well delineated and completely homogeneous, with a marked hyperintense signal ('hemangiomalike' pattern). These neoplasms were composed of smooth fibrous tissue without macroscopically visible areas of necrosis on pathologic examination. The remaining four metastases were heterogeneous and contained varying degrees of necrosis and hemorrhage or gelatinous tissue. Conclusion: A hemangiomalike pattern is the most common feature on T2-weighted MR images. We found that homogeneous hyperintensity of hepatic metastases from leiomyosarcoma on T2-weighted MR image does not reflect cystic changes.

Original languageEnglish (US)
Pages (from-to)67-71
Number of pages5
JournalAbdominal Imaging
Volume22
Issue number1
DOIs
StatePublished - Jan 22 1997

Keywords

  • Leiomyosarcoma
  • Liver tumors, secondary
  • Liver, neoplasms
  • Magnetic resonance imaging

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging
  • Gastroenterology
  • Urology

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