Multiple sclerosis. There is no significant interval change in the appearance of multiple supratentorial and infratentorial T2 hyperintense white matter lesions, many of which are also T1 hypointense. There is no evidence of intracranial hemorrhage, mass, or acute infarct. The ventricles are normal in size and configuration. There is an unchanged superior vermian cistern arachnoid cyst. There is no midline shift or herniation. The major cerebral flow voids are intact. The orbits, skull, paranasal sinuses, and scalp soft tissues are grossly unremarkable.
No significant in the extent of demyelinating disease.