Risk Factors
The only known risk factor for acoustic neuroma is having the
rare genetic disorder neurofibromatosis 2, which involves the
development of benign tumors on the vestibulocochlear nerves on
both sides of your head, as well as on other nerves.
Neurofibromatosis
2 is known as an autosomal dominant disorder, meaning the mutation
occurs on a nonsex chromosome (autosome) and can be passed on
from only one parent (dominant gene). If either parent has this
disorder, their children have a 50-50 chance of inheriting it.
Acoustic neuromas
are most common in people between the ages of 30 and 60 years
old.
Some evidence
has suggested that persistent exposure to very loud noise or heavy
cell phone use may play a role in the development of acoustic
neuroma, but findings from studies looking into these associations
have been inconclusive.