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 post operatively. We postulate that these symptoms were caused by a secondary endolymphatic hydrops and were able to demonstrate improvement in high frequency vestibulo-ocular-reflex (VOR) with pre- and post-operative VHIT testing