Intracanalicular meningioma mimicking vestibular schwannoma

AJNR Am J Neuroradiol. 2002 Oct;23(9):1493-6.

Abstract

Three cases of intracanalicular meningioma mimicking vestibular schwannoma are presented. In each case, a contrast-enhancing mass filling the internal auditory canal was identified on MR images and was originally diagnosed as a vestibular schwannoma. Although it is difficult to differentiate definitively between these lesions preoperatively, imaging findings inconsistent with a diagnosis of vestibular schwannoma can be identified. Preoperative identification of intracanalicular meningiomas permits alterations in surgical planning that allow for the more complete resection of these rare tumors.

Publication types

  • Case Reports

MeSH terms

  • Adult
  • Aged
  • Contrast Media
  • Diagnosis, Differential
  • Ear Neoplasms / diagnosis*
  • Female
  • Humans
  • Magnetic Resonance Imaging
  • Male
  • Meningeal Neoplasms / diagnosis*
  • Meningioma / diagnosis*
  • Neuroma, Acoustic / diagnosis*

Substances

  • Contrast Media