Multiple sclerosis with ataxia. There are extensive supratentorial and infratentorial T2 hyperintense lesions in the cerebral white matter, which appear similar as on the prior exam, accounting for differences in technique. There are also T2 hyperintense lesions in the imaged portions of the cervical spine. There is no evidence of intracranial hemorrhage, mass, or acute infarct. There is diffuse cerebral volume loss. 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.
Extensive supratentorial and infratentorial demyelinating lesions appear similar as on the prior exam, accounting for differences in technique.