47 years, Male, with multiple sclerosis. Paresthesias. Evaluate for progression. There are approximately 20 periventricular and subcortical supratentorial as well as infratentorial T2/FLAIR hyperintense lesions in the white matter with morphology and distribution consistent with known demyelinating disease. Multiple lesions are seen along the corpus callosum. Infratentorial lesions include the pons, right middle cerebellar peduncle, and right cerebellar hemisphere. Several apparent foci of hyperintensity in the cerebellum are most likely artifactual. Compared to 6/21/2013, no new lesion is definitively appreciated. Multiple lesions with T1 hypointensity are again seen. There is minimal global brain parenchymal volume loss including thinning of the corpus callosum. No intracranial mass or mass effect. No hydrocephalus. Bone marrow signal and extracranial soft tissues are unremarkable. Patchy opacification of the ethmoid sinuses again seen.
No convincing evidence of progression of chronic demyelinating disease in the brain compared to 6/21/2013.