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Entirely intracanalicular meningioma: contrast-enhanced MR findings in a rare entity

K Haught1, J P Hogg, J A Killeffer

  • 1School of Medicine, West Virginia University, Morgantown 26506, USA.

AJNR. American Journal of Neuroradiology
|January 5, 1999
PubMed

Insights

An unusual intracanalicular meningioma was found in a 51-year-old woman. This finding suggests meningiomas should be considered for entirely intracanalicular masses.

Area of Science:

  • Neurology
  • Neurosurgery
  • Radiology

Background:

  • Meningiomas are typically dural-based tumors.
  • Intracanalicular masses can present diagnostic challenges.

Observation:

  • A contrast-enhanced MRI revealed an enhancing lesion within the left internal auditory canal.
  • The lesion completely filled the lateral aspect of the canal.

Findings:

  • The case presented an entirely intracanalicular meningioma, an uncommon location.
  • The imaging characteristics were consistent with a meningioma.

Implications:

  • This case expands the differential diagnosis for intracanalicular lesions.
  • Highlights the importance of considering meningiomas in the evaluation of internal auditory canal masses.

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