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Extraosseous spinal chordoma. Case report.

F H Tomlinson1, B W Scheithauer, G M Miller

  • 1Department of Neurosurgery, Mayo Clinic, Rochester, Minnesota.

Journal of Neurosurgery
|December 1, 1991
PubMed
Summary
This summary is machine-generated.

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A rare lumbar chordoma, originating outside bone, caused symptoms in a woman. Complete surgical removal was possible due to its location, suggesting development from extraosseous notochordal remnants.

Area of Science:

  • Neurosurgery
  • Oncology
  • Pathology

Background:

  • Chordomas are rare malignant tumors typically arising from bone remnants of the notochord.
  • Extraosseous chordomas are exceptionally rare, with most documented cases occurring in the sacrococcygeal region or skull base.

Observation:

  • A 58-year-old woman presented with symptoms attributed to an extraosseous extradural tumor in the lumbar region.
  • The tumor occupied the epidural space, causing vertebral body and pedicle scalloping without bone destruction.
  • Histological examination revealed features consistent with chordoma.

Findings:

  • The tumor's extraosseous and extradural location within Batson's plexus, lacking osseous connection, facilitated complete surgical resection.
  • Despite its extradural location, the tumor exhibited classic chordoma histology.

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Implications:

  • This case suggests that chordomas can arise from extraosseous notochordal remnants in the spine, similar to cranial chordomas.
  • Complete resection is feasible for such tumors due to their location and lack of bone invasion.
  • Further research into the pathogenesis of extraosseous chordomas is warranted.