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Sacral intraspinal extradural primitive neuroectodermal tumor.

Volker Musahl1, Jeffrey A Rihn, Frank E Fumich

  • 1Department of Orthopaedic Surgery, Division of Spinal Surgery, University of Pittsburgh Medical Center, Liliane Kaufmann Building, 3471 Fifth Avenue, Suite 1010, Pittsburgh, Pennsylvania 15213, USA.

The Spine Journal : Official Journal of the North American Spine Society
|November 6, 2007
PubMed
Summary
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Extradural primitive neuroectodermal tumors (PNETs) are rare spinal tumors. This case highlights successful sacral tumor resection and chemotherapy, leading to a 2-year disease-free survival.

Area of Science:

  • Neuro-oncology
  • Surgical Oncology
  • Pediatric Oncology

Background:

  • Intraspinal primitive neuroectodermal tumors (PNETs) are exceptionally rare, with limited reported cases, predominantly intradural.
  • Extradural PNETs of the spine are even rarer, with few documented instances in the cervical and thoracic regions.

Observation:

  • A patient presented with sciatica and cauda equina-like symptoms, indicative of a spinal cord or nerve root compression.

Findings:

  • Histological analysis confirmed a sacral extradural small blue-cell tumor, classified within the Ewing sarcoma/PNET family.
  • The tumor was metastatic, with pulmonary and abdominal nodules identified during oncological staging.
  • The patient achieved rapid pain relief following urgent sacral decompression and tumor resection.

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Implications:

  • This case demonstrates the feasibility of aggressive surgical management combined with chemotherapy and radiation for extradural spinal PNETs.
  • Successful treatment resulted in a 2-year disease-free outcome, suggesting potential for long-term survival in select cases.
  • Further research into extradural spinal PNETs is warranted to optimize treatment strategies and improve patient prognosis.