Hi butterbean,
I wrote a post about MS lesions a few years ago. In MS, lesions are areas of the central nervous system (brain, spine, or optic nerves) which are inflammed or demyelinated. Myelin is the fatty coating which protects nerves and helps to transmit nerve impulses. When the myelin is damaged, lesions occur which can be visualized on MRI scans. It is important to know that MS is not the only condition which can cause lesions in the brain or on the spine.
Lisa
Important:
We hope you find this general health information helpful. Please note however, that this Q&A is meant to support not replace the professional medical advice you receive from your doctor. No information in the Answers above is intended to diagnose or treat any condition. The views expressed in the Answers above belong to the individuals who posted them and do not necessarily reflect the views of Remedy Health Media. Remedy Health Media does not review or edit content posted by our community members, but reserves the right to remove any material it deems inappropriate.