Multiple sclerosis with left optic neuritis. Brain: There are numerous, primarily periventricular supratentorial and infratentorial white matter T2 hyperintense lesions, some of which demonstrate enhancement. There is no evidence of intracranial hemorrhage, mass, or acute infarct. 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 skull and scalp soft tissues are grossly unremarkable. There is minimal scattered paranasal sinus mucosal thickening.Orbits: There is diffuse enhancement and T2 hyperintensity of the left optic nerve orbital segment. There is no evidence of mass lesions and the rest of the left orbital contents are intact. The right orbital structures are unremarkable.
1. Numerous intracranial demyelinating lesions, some of which demonstrate enhancement, indicative of acute inflammation.2. Findings compatible with left optic neuritis.