Overview
Schwannomas can occur along any nerve, including the spinal nerves and the nerve to the ear (acoustic neuroma). Most grow slowly.
Symptoms
- A painless lump along a nerve
- Pain, numbness or tingling
- Weakness in the area supplied by the nerve
- Hearing loss and balance problems if near the ear
Causes and risk factors
The cause is usually unknown. Multiple schwannomas occur in neurofibromatosis type 2 and schwannomatosis.
Diagnosis
MRI shows the tumour. A biopsy is sometimes needed.
Treatment
Treatment may include monitoring, surgery to remove the tumour or radiosurgery.
When to see a doctor
See a doctor for a new lump with nerve symptoms such as tingling or weakness.
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.
