51-year-old female with a history of multiple sclerosis presents with paresthesias, evaluate for progression. Please note that differences in technique and magnet strength slightly limits comparison with the prior study.MRI brain: There is a moderate degree of periventricular and subcortical white matter lesions as well as minimal corpus callosum lesions with some lesions perpendicularly oriented to the lateral ventricles. A prominent left cerebellar lesion is again identified. Overall the previously described lesions are stable, with slight increased size and conspicuity of some lesions. There is corresponding T1 hypointensity. There is no significant contrast enhancement associated with these lesions. No new lesions are identified.Normal vascular flow is present in the distal carotid and vertebral arteries, basilar artery, and the proximal anterior, middle, and posterior cerebral arteries. There is also normal vascular flow voids in the internal cerebral veins and superior sagittal sinus.There is a bony excrescence arising from inner table of the right parietal bone which is hyperintense on T1 and T2 and may represent a benign bony lesion such as an osteoma.MRI cervical spine: The cervical spine is in normal alignment, with a normal cervical lordosis. The vertebral body and disk heights are well-maintained. Minimal central disc protrusions are again noted in the mid-cervical spine. No worrisome focal marrow signal abnormality is appreciated. The spinal cord is of normal caliber and signal. There is no pathological enhancement. There is no significant disk bulge, herniation, spinal canal or foraminal stenosis within the cervical spine. MRI thoracic spine: The thoracic spine is in normal alignment, with a normal thoracic kyphosis. The vertebral body and disk heights are well-maintained. Again seen is a subtle area of T2 hyperintensity within the dorsal cord at the T6-T7 level. There is no pathological enhancement. No additional lesions are identified. There is no significant disk bulge, herniation, spinal canal or foraminal stenosis within the thoracic spine.
1. Mild T1 burden and moderate T2 burden of demyelinating disease within the brain, including involvement of infratentorial structures. Overall, findings are stable with only minimal progression of a few lesions.2. Stable appearance of nonenhancing T2 hyperintense demyelinating cord lesion at T6-T7 without new spinal cord lesions identified.