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Spinal extradural meningeal cyst. Case report

K Uemura1, T Yoshizawa, A Matsumura

  • 1Department of Neurosurgery, Institute of Clinical Medicine, University of Tsukuba, Ibaraki, Japan.

Journal of Neurosurgery
|August 1, 1996
PubMed
Summary

A spinal extradural meningeal cyst in a 30-year-old man was successfully treated. Surgical intervention resolved the cyst by addressing a dural defect and a likely valvelike mechanism.

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Area of Science:

  • Neurosurgery
  • Spinal Surgery
  • Cystic Lesions

Background:

  • Spinal extradural meningeal cysts are rare, often asymptomatic, and can present with neurological deficits.
  • This report details a unique case of a thoracolumbar meningeal cyst in a young adult.

Observation:

  • A dural defect was identified, allowing communication between the cyst and the subarachnoid space.
  • The Valsalva maneuver induced cerebrospinal fluid (CSF) flow into the cyst, but not in reverse.

Findings:

  • The observed unidirectional CSF flow suggests a valvelike mechanism contributing to cyst enlargement.
  • Surgical resection of the cyst wall and dural defect repair were performed.

Implications:

  • This case highlights the importance of identifying and addressing dural defects in spinal extradural meningeal cysts.

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  • Surgical management involving cyst wall resection and dural closure offers a favorable outcome for such conditions.