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Spinal cord ependymomas: MR imaging features

M J Fine1, I I Kricheff, D Freed

  • 1Department of Radiology, New York University Medical Center, NY 10016, USA.

Radiology
|December 1, 1995
PubMed
Summary
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Magnetic resonance imaging reveals that spinal intramedullary ependymomas typically enhance after gadolinium contrast administration. These tumors often present with sharply defined borders and are centrally located within the spinal cord.

Area of Science:

  • Neurosurgery
  • Radiology
  • Oncology

Background:

  • Spinal intramedullary ependymomas are tumors arising within the spinal cord.
  • Accurate imaging is crucial for diagnosis and surgical planning.

Purpose of the Study:

  • To characterize the magnetic resonance (MR) imaging features of spinal intramedullary ependymomas.
  • To correlate imaging findings with tumor characteristics.

Main Methods:

  • Retrospective review of MR images from 25 patients with spinal intramedullary ependymomas.
  • Analysis of T1- and T2-weighted images, with and without gadolinium contrast administration.

Main Results:

  • All ependymomas showed hyperintense signal on T2-weighted images.

Related Experiment Videos

  • Post-contrast enhancement was observed in all evaluated tumors, typically with sharply defined borders.
  • Tumors were predominantly centrally located within an expanded spinal cord.

    • Conclusions:

    • Spinal intramedullary ependymomas exhibit characteristic enhancement patterns on MR imaging after contrast administration.
    • The imaging findings, including location and border definition, aid in diagnosis.
    • Presence of hemosiderin may be noted, particularly in cervical ependymomas.