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Intradural extramedullary ependymoma: MR-pathologic correlation.

W A Wagle1, B Jaufman, J E Mincy

  • 1Department of Radiology, Albany Medical Center, NY 12208.

Journal of Computer Assisted Tomography
|July 1, 1988
PubMed
Summary
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This study details a rare spinal cord ependymoma, an encapsulated tumor within the spinal canal. Imaging revealed specific signal intensities on MRI, aiding diagnosis.

Area of Science:

  • Neurology
  • Oncology
  • Radiology

Background:

  • Ependymomas are tumors arising from ependymal cells, typically found in the central nervous system.
  • Spinal cord ependymomas, particularly intradural, extramedullary types, are uncommon.
  • Accurate preoperative diagnosis is crucial for effective surgical planning and patient outcomes.

Observation:

  • A case of an encapsulated, intradural, extramedullary ependymoma in the midthoracic spinal cord is presented.
  • Magnetic resonance imaging (MRI) demonstrated characteristic signal intensities: hyperintense on long repetition time (TR)/long echo time (TE) sequences and nearly isointense on short TR/short TE sequences.
  • The tumor's appearance was evaluated both in vivo and on a fresh specimen.

Findings:

  • The MRI findings suggest specific patterns for differentiating spinal ependymomas from other spinal tumors.

Related Experiment Videos

  • Histopathological examination confirmed the diagnosis of ependymoma.
  • Correlation of imaging findings with histopathology provides valuable diagnostic criteria.

    • Implications:

    • Understanding the MRI characteristics of spinal ependymomas can improve diagnostic accuracy.
    • This case highlights the importance of comprehensive evaluation including clinical history, myelography, and advanced imaging.
    • Further research into the imaging features of rare spinal tumors can enhance neurosurgical approaches.