Multiple sclerosis [G35] / Other specified forms of tremor [G25.2], Reason for Study: ^Reason: MS, f/u progression History: ataxia Multifocal patchy FLAIR high signal intensity lesions on bihemispheric periventricular white matter and centrum semiovale as well as bilateral thalami, midbrain, pons, bilateral middle cerebellar peduncles and cerebellar hemispheres indicating demyelinating disease, unchanged since prior scan.Diffuse mild brain volume loss is again seen, unchanged.There is no evidence of abnormal enhancement on this scan.The ventricles, sulci and cisterns are symmetric and unremarkable. There is no mass, mass effect, edema, midline shift, intra or extra-axial fluid collection/hemorrhage, restricted diffusion/acute ischemia, or abnormal contrast enhancement. Normal flow voids are identified in the major intracranial vessels. The paranasal sinuses and mastoid air cells are clear.
Extensive supra and infratentorial white matter lesions consistent with demyelinating disease, unchanged since prior scan.No evidence of abnormal enhancement.