Posterior Fossa Meningioma with Endolymphatic Sac Compression: Resolution of Dizziness after Surgery

Dizziness is a prevalent clinical complaint, and determining the underlying etiology can be challenging. Posterior fossa masses have been observed to cause vertigo, with presentations very similar to Meniere’s disease. In this report, we describe a case of a patient who presented with recurrent episodes of Meniere’s-like vertigo in the setting of a posterior fossa meningioma, who underwent surgical resection of the tumor with significant improvement postoperatively. We postulate that these symptoms were caused by secondary endolymphatic hydrops and were able to demonstrate improvement in high-frequency vestibulo-ocular reflex with pre- and postoperative video head impulse testing.

posterior fossa meningioma - dizziness - endolymphatic sac compression - vHIT

© 2026. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/).

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