Leksell Radiosurgery for Vestibular Schwannomas.

Vestibular schwannomas (VS) are benign tumors predominantly originating from the balance portion of cranial nerve VIII. These tumors have an incidence of 1-2 per 100,000 people. The growth of these tumors is approximately 1-2 mm per year. A VS can result in significant neurologic dysfunction from continued growth or the management paradigms designed to control this predominantly benign tumor. The impacts on the critical space within the auditory canal and cerebellopontine angle can lead to hearing deficits, tinnitus, vestibular dysfunction, facial nerve deficits, and brain stem compression.