33 years, Female, multiple sclerosis. Numbness, weakness left leg. Follow-up for progression.. There are greater than 20 T2/FLAIR hyperintense lesions in the bilateral periventricular and subcortical white matter with morphology and distribution compatible with known demyelinating disease. There are slight difference in technique with the most recent study 12/17/2015 performed with thicker slices, while the study from 11/4/2014 is more comparable to the current study. Since 11/4/2014 there appear to be at least 2 new lesions involving the left posterior frontal white matter, series 501 images 47 and 51. The more inferior medial one was also present on most recent study 12/17/2015 while the more superior lateral one is not definitively present on 12/17/2015. No posterior fossa lesions are definitively appreciated.There is mild burden of T1 hypointense lesions. Brain parenchymal volume is preserved. No intracranial mass or mass effect. Ventricles and sulci are within normal limits. Calvarium and extracranial soft tissues are grossly unremarkable.
Findings suggesting very mild gradual progression of demyelinating disease with two new left posterior frontal lobe lesions since 11/4/2014, and one new lesion since 12/17/2015.