Snapshot A 35-year-old man with neurofibromatosis type II presents with nausea, vomiting, vertigo, and deafness in his right ear. Hemianesthesia is present on the right side of this face. Introduction Arises in the cerebellopontine angle Involves the CN VIII may involve the trigeminal nerve (CN V) Most commonly a benign schwannoma Increased incidence in patients with neurofibromatosis type II mutation on chromosome 22 Presentation Tinnitus (VIII) Deafness (VIII) Sensory changes in the face (V) Nausea/vomiting Vertigo Nystagmus Ataxia .Evaluation MRI of cerebellopontine angle Treatment Local radiation Surgical excision