Multiple sclerosis [G35], Reason for Study: ^Reason: MS, follow up progression History: paresthesias There are wedge shaped ill defined FLAIR high signal intensity lesions on bilateral corpus callosum body portion, best seen on sagittal scan.Another small focal lesion is seen on the left frontal lobe superior frontal gyrus.A small right anterior thalamic FLAIR high signal lesion is non specific.Subtle FLAIR high signal intensity lesions are seen on bilateral periventricular white matter especially trigone area. The ventricles, sulci and cisterns are unremarkable. There is no mass, mass effect, edema, midline shift.Normal flow voids are identified in the major intracranial vessels. The paranasal sinuses and mastoid air cells are clear.
Multifocal bihemispheric FLAIR high signal intensity lesions on bilateral corpus callosum and periventricular white matter. Considering the patient's clinical history of MS, these lesions are consistent with demyelinating lesions.