Multiple sclerosis with paresthesias. There are persistent numerous T2 hyperintense foci scattered about the periventricular, subcortical and deep white matter of the cerebrum as well as the corpus callosum, where many of the lesions are oriented perpendicular to the callososeptal interface. Many of these foci demonstrate corresponding T1 hypointensity. There is no significant change in these lesions. There is also abnormal high T2 signal in the periaqueductal region of the midbrain and inferior colliculus, which is also unchanged. There are no findings to suggest progressive multifocal leukoencephalopathy. The ventricles and basal cisterns are normal in size and configuration. There is no midline shift or herniation. The skull and extracranial soft tissues are unremarkable.
1.Numerous demyelinating lesions in the supratentorial brain and periaqueductal region are not significantly changed.2.No specific findings to suggest progressive multifocal leukoencephalopathy.