MR imaging in the follow-up. Evaluation of aggressive soft tissue tumors

L. G. Shapeero, D. Vanel

Research output: Contribution to journalArticle


Although newer imaging techniques aid in the diagnosis of soft tissue sarcomas and current surgical procedures and adjunct therapy decrease the incidence of their recurrences when patients are referred to oncologic centers, the majority of these tumors are suboptimally evaluated in general practice with frequent recurrences. Close surveillance of these patients is necessary for early recognition and treatment of recurrent disease. This article describes an organized, stepwise magnetic resonance imaging evaluation of these patients after surgery and radiation therapy. The initial sequence should be T2-weighted. Low signal intensity or diffuse high signal intensity without mass on T2-weighted sequence excludes recurrence in 99% of patients. A high signal intensity mass, however, should be studied with bolus injection of contrast medium. Although standard contrast-enhanced MR imaging differentiates the non-enhancing hygroma or hematoma from the enhancing recurrence or pseudotumor, dynamic contrast-enhanced MR imaging is required to distinguish the rapidly enhancing recurrent tumor from the slowly enhancing pseudotumor of inflammation.

Original languageEnglish
Pages (from-to)197-205
Number of pages9
JournalSeminars in Musculoskeletal Radiology
Issue number2
Publication statusPublished - 1999


  • Magnetic resonance (MR), rapid imaging
  • Sarcoma, soft tissue
  • Soft tissue, MR
  • Soft tissue, neoplasms
  • Soft tissue, recurrence

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Surgery

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