Intracanalicular meningioma

Intracanalicular meningiomas are extremely rare and difficult to differenti ate from intracanalicular vestibular schwannomas. We report an unusual case of a posterior fossa meningioma in the proximal internal auditory canal th at was originally: diagnosed as a vestibular schwannoma due to its appearan ce on magnetic resonance imaging, However, closer inspection of the preoper ative neuroimages revealed features inconsistent with vestibular schwannoma that suggested the possibility of other less common lesions,