Have you had the blood test for Devic's? It is suppose to be a definite thing. Also, some people will develope lesions in the brain with Devic's. Devic's will "eat at" the white matter which leads to stenosis (narrowing of the spine). It is considered permanent damage from a "long" transverse meylitis, or however you spell it. MS causes "small" lesions or spots on the brain and spine, and let's not leave out those wonderful optic nerves. Devic's, once considered a more severe form of MS, is drifting away from the MS family more and more each year. Gary calls it MSs evil twin sister. Gary had 5 lesions on his brain and then almost 1 year to the date, there was NONE. After 25+ years, he has no lesions in the spine, brain, or optic nerves, but he does have the narrowing of the spine in the neck area. C2 - C7 is what his Neuro said. I have not seen the MRI, so I don't know what it looks like. Hope this answers questions for you.