Multiple sclerosis, follow up for progression. Motion artifacts degraded exam quality.There are multiple bihemispheric high signal intensity lesions on FLAIR images.The lesions involve right frontal lobe, right parietal lobe, right occipital lobe, left frontal lobe, left parietal lobe, left occipital lobe and periventricular white matter and bilateral trigone areas. The ventricles, sulci and cisterns are symmetric and unremarkable. There is no mass, mass effect, edema, midline shift, intra or extra-axial fluid collection/hemorrhage, or restricted diffusion/acute ischemia. The midline structures and cranial-cervical junction are normal. Normal flow voids are identified in the major intracranial vessels. The paranasal sinuses and mastoid air cells are clear.
Multifocal bihemispheric abnormal FLAIR high signal lesions which are consistent with MS lesions as described above.No comparison was made since there is no prior exam available. 