Introduction: The vestibular schawannoma or acoustic neurinoma is a slow growing benign tumor that affects rather division superior vestibular nerve and represents 7% of all the intracranial tumors and 80% affecting the cerebellopontine angle. The initial symptoms in the great majority are unilateral and progressive hypoacusis, tinnitus, and dizziness, being that sudden deafness, characterized by neurosensory hearing loss higher than 30 dB at three or more contiguous frequencies, open frame only in 4% of the cases.