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Skull Base 1999; 9(2): 87-94
DOI: 10.1055/s-2008-1058154
Original Articles

© Thieme Medical Publishers, Inc., 381 Park Avenue South, New York, NY 10016

Meningiomas Involving the Internal Auditory Canal: A Diagnostic and Surgical Challenge

A. Simon Carney, Victoria Ward, Conor L. Malluci, Gerard M. O'Donoghue, Iain Robertson, David L. Baldwin, A. Richard Maw, Hugh B. Coakham
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Publication History

Publication Date:
03 March 2008 (online)

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Abstract

Meningiomas are the second most common lesion encountered within the cerebello-pontine angle (CPA) and rarely project into or originate from the internal auditory meatus (IAM). It is important to distinguish between meningiomas and acoustic neuromas preoperatively as the choice of surgical approach may differ depending on the tumour type. Fortunately, most lesions can be accurately diagnosed with gadolinium-enhanced magnetic resonunce imaging (MRI). We report six cases of meningioma involving the IAM, often leading to an incorrect preoperative MRI diagnosis. We highlight the challenges these tumors present to radiologists and surgeons.

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