My MRI results on T-2 weighted and flair sequences. Subtle patchy foci of intermediate signal are visualized w/in the preriventricular white matter , corona radiate and centrum semiovale. Distribution of abnormalities is relatively. My symptoms were extreme sleepiness. (Inow have a hypersomnia diagnosis.) memory , and now weight gain . My doctor prescribed pro vigil and said it was from a virus 2 yrs ago. Not reversible. That s it.