A schwannoma is a tumor of the nervous system that develops in certain glial cells (non-excitable cells of the nervous system).

These cells create an insulating sheath (myelin) around neurons to facilitate the transmission of nerve impulses. They can develop into tumors that are usually benign.

A schwannoma can occur in any of the thoracic nerves. It can be treated with excision.

Last update : 29/08/2019