Multiple sclerosis: right sided numbness. Brain: There has been interval increase in the size and number of T2 hyperintense lesions involving the cerebral white matter, including in the unilateral corona radiata, posterior cingulate gyri, and peritrigonal regions. The ventricles and basal cisterns are normal in size and configuration. There is no midline shift or herniation. The major cerebral flow voids are intact. The orbits, skull, paranasal sinuses, and scalp soft tissues are grossly unremarkable.Cervical Spine: There is a faint patchy area of T2 hyperintensity in the left spinal cord at the C4 level. The vertebral column alignment is within normal limits. The vertebral body and disc space heights are preserved. The vertebral bone marrow signal is unremarkable. There is no significant spinal canal stenosis. The paravertebral soft tissues are unremarkable.
1. Interval progression of the intracranial demyelinating lesions.2. Small residual demyelinating lesion in the left spinal cord at the C4 level.