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Schwannoma
Medical Questions » Schwannoma
| Name: Schwannoma |
| Also known as: |
| Slow growing tumor that usually occurs in the acoustic (hearing) nerve (acoustic neuroma), and is formed from cells that normally act as the insulating sheath around the nerve (Schwann cells). Often occurs near the point where the nerve leaves the brain. These growths may also occur on other nerves leading from the brain and in the spinal cord. |
Causes of Schwannoma
May be inherited or arise spontaneously. Sometimes associated with von Recklinghausen' s disease of multiple neurofibromatosis (see separate entry). |
Symptoms of Schwannoma
Impaired function of the involved nerve. If the auditory nerve is involved, progressive deafness in one ear occurs. |
Tests for Schwannoma
CT and MRI scans, and measuring brain waves when involved nerve stimulated (eg. when different sounds heard). |
Treatment for Schwannoma
Microsurgical removal of the Schwann cells from around the remaining nerve cells at an early stage of tumor development may result in preservation of nerve function and hearing. Radiation may be used for more advanced growths.
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Complications of Schwannoma of its treatment
Damage to skull bone and other tissues around tumor. |
Likely Outcome of Schwannoma
Not malignant. If left untreated will cause total loss of nerve function (eg. deafness in one ear) and eventually bone pain. Good results from treatment, but depends on stage of progression when diagnosed. |
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