Numbness in the left leg, evaluate for multiple sclerosis progression. Brain: Again seen are multiple T2/flair hyperintense lesions in the periventricular and subcortical white matter with appearance and distribution consistent with known demyelinating disease. There is slight interval decrease in size of right frontal lesion. Many of the lesions demonstrate T1 hypointensity. There are no enhancing lesions. There is no evidence of intracranial mass or mass effect. The ventricles and basal cisterns are normal in size and configuration. There is no midline shift or herniation. The skull and extracranial soft tissues are unremarkable. Thoracic Spine: Again seen are multiple T2 hyperintense lesions in the thoracic cord from T8 to T12 which are not clearly changed since 6/10/2013. No new lesions are seen. No abnormal enhancement.Vertebral body heights in the thoracic spine are normal. Alignment is normal. There is disk desiccation, small bulge and Schmorl's node at the T9-T10 level. No significant spinal canal or neural foramina stenosis.
1. Compared to MRI dated 4/12/2014, there is no significant change in size and appearance of the multiple T2/flair hyperintense supratentorial white matter lesions consistent with known demyelinating disease. No new lesions or lesions with enhancement to suggest active demyelination.2. Multiple T2 hyperintense lesions involving the thoracic cord from T8 to T12 are consistent with chronic demyelinating plaques. No new lesions are appreciated. No abnormal enhancement.