Association of heterotopic neuroglial tissue with an arachnoid cyst in the internal auditory canal

H. W. Francis, G. T. Nager, M. J. Holliday, D. M. Long

Research output: Contribution to journalArticlepeer-review

Abstract

An arachnoid cyst arising within the internal auditory canal, or within the cerebellopontine angle and subsequently extending into the internal meatus and enlarging it, is a rare occurrence. Nevertheless, the neurootologist and the neurosurgeon have an interest in its existence because its clinical manifestations are identical with the ones produced by a schwannoma, involving overwhelmingly the cochleovestibular nerve in that region. An equally rare observation in that location is the presence of ectopic neuroglial tissue. The two can occur independently or in combination. Examples of such lesions are presented, and their possible pathogenesis is discussed.

Original languageEnglish (US)
Pages (from-to)37-49
Number of pages13
JournalSkull Base Surgery
Volume5
Issue number1
DOIs
StatePublished - 1995

ASJC Scopus subject areas

  • Clinical Neurology

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