Lesion Typical Of Multiple Sclerosis (IMAGE) University of Chicago Medical Center Caption This is a photograph of de-myelinated neurons forming a dark lesion (center) in a field of otherwise healthy neurons (green). Credit Maria Traka, University of Chicago Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.