Bilateral acoustic neuroma, otherwise called vestibular schwannoma, is a noncancerous and moderately developing tumor that forms on the vestibular nerve that connects your inner ear to your brain. Parts of this nerve can have impacts on your balance and hearing, and pressure from an acoustic neuroma can cause hearing loss, ringing in your ear and uncontrolled movements.
Acoustic neuroma usually rises up out of the Schwann cells covering this nerve and grows steadily or not at all. Sometimes, it might develop quickly and become sufficiently extensive to press against the brain and meddle with cognitive capacities.
Treatments for acoustic neuroma include simple observation, radiation, and careful removal.