An acoustic neuroma is a noncancerous growth that develops on the eighth cranial nerve. Also known as the vestibulocochlear nerve, it connects the inner ear with the brain and has two different parts. One part is involved in transmitting sound; the other helps send balance information from the inner ear to the brain.
Treatment: Surgery for acoustic neuromas may involve removing all or part of the tumor. There are three main surgical approaches for removing an acoustic neuroma: Translabyrinthine, which involves making an incision behind the ear and removing the bone behind the ear and some of the middle ear. This procedure is used for tumors larger than 3 centimeters. The upside of this approach is that it allows the surgeon to see an important cranial nerve (the facial nerve) clearly before removing the tumor. The downside of this technique is that it results in permanent hearing loss.
Statistical Analysis: Each year, 1 in 100,000 people develops. Each child of a parent with the condition has a 50% chance of developing the condition, too.