Multiple sclerosis. There are multiple T2 hyperintense lesions in the cerebral white matter bilaterally, which are stable to slightly progressed since 2014, although precise comparison is limited due to differences in technique. Most of the lesions demonstrate T1 hypointensity as well. There may also be a few punctate infratentorial T2 hyperintense lesions. There is no evidence of mass lesions. The ventricles and basal cisterns are normal in size and configuration. 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.
The intracranial demyelinating lesions are stable to slightly progressed since 2014, although precise comparison is limited due to differences in technique. 