Intraspinal extradural meningeal cyst demonstrating ball-valve mechanism of formation. Case report

D. C. Rohrer, K. J. Burchiel, D. P. Gruber

Research output: Contribution to journalArticle

85 Scopus citations

Abstract

A diverse collection of unverified theories as to the etiology of extradural meningeal cysts have been previously proposed. One case of intraspinal extradural meningeal cyst of the thoracolumbar region is presented in which a ball-valve mechanism involving an idiopathic dural rent and a herniated segment of an underlying dorsal rootlet was suggested by the operative findings. Closure of the dural rent with marsupialization of the meningeal cyst obliterated this extradural lesion. The ball-valve mechanism of formation and other previously proposed theories are discussed.

Original languageEnglish (US)
Pages (from-to)122-125
Number of pages4
JournalJournal of neurosurgery
Volume78
Issue number1
DOIs
StatePublished - Jan 1 1993

Keywords

  • etiology
  • meningeal cyst
  • spinal cord compression
  • spinal cyst

ASJC Scopus subject areas

  • Surgery
  • Clinical Neurology

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