Evaluate for progression of multiple sclerosis Numerous nonenhancing foci of T2 hyperintensity in the supratentorial, and to a lesser extent infratentorial, white matter are compatible with demyelinating disease and show no significant interval change in T2 signal characteristics. The majority of these foci have associated T1 hypointensity, also unchanged. CSF signal intensity foci in the basal ganglia are most consistent with prominent perivascular spaces. There is a prominent vessel coursing the right frontal lobe white matter perpendicular to the ventricles most consistent with a developmental venous anomaly. There is no abnormal enhancement within the brain. The ventricles and sulci are normal in size. Flow voids are present within the major vessels indicating patency. There is mucosal thickening of the right maxillary sinus.
Grossly unchanged nonenhancing foci of white matter T2 hyperintensity compatible with demyelinating disease. 