Overview
An acoustic neuroma grows on the nerve that controls hearing and balance. It is benign and grows slowly, but as it enlarges it can press on nearby nerves and, rarely, on the brain.
Symptoms
- Gradual hearing loss in one ear
- Ringing in the ear (tinnitus)
- Unsteadiness or dizziness
- Facial numbness or weakness in larger tumours
Causes and risk factors
Most cases have no known cause. Tumours on both sides are linked to an inherited condition called neurofibromatosis type 2.
Diagnosis
A hearing test is usually the first step. An MRI scan of the head confirms the diagnosis and shows the size of the tumour.
Treatment
Small tumours that are not growing may simply be monitored with regular scans. Larger or growing tumours can be treated with surgery or focused radiation (radiosurgery) to stop growth.
When to see a doctor
See a doctor if you notice hearing loss or ringing in one ear only, or unexplained balance problems.
This information is for general education and does not replace advice from a qualified doctor. For a medical emergency, call +92-51-8446666 or go to the nearest emergency department.
