Acoustic Neuroma

An acoustic neuroma is a benign tumor on the vestibular portion of the eighth cranial nerve, which connects the inner ear to the brain. Both hearing and balance may be affected.

Acoustic neuromas are rare. Only about 2,000 cases are diagnosed in the United States each year.

Some acoustic neuromas cause a period of unsteadiness or imbalance. This imbalance can occur without other typical symptoms, such as one-sided hearing loss or intense ringing in the ear.

Most acoustic neuromas are removed by microsurgery. Other options, including various types of radiation therapy (often called radiosurgery) are also available. Each type of treatment entails some risk of permanent change in hearing, balance, and facial motion. Some people may experience imbalance for several months after surgery.

From VEDA publication F-8, Acoustic Neuroma