Female, 53 years old, with history of transverse myelitis, numbness of the legs. Approximately 10 small T2 hyperintense lesions are evident within the cerebral white matter involving predominantly the periventricular regions and corpus callosum. Several of the lesions are linear and oriented radially with respect to the ventricles. One lesion in the left periatrial region demonstrates corresponding marked T1 hypointensity. No edema or mass effect is detected. Brain parenchymal volume is preserved. No intracranial hemorrhage or any abnormal extra axial fluid collection is suspected. Ventricular size and morphology are within normal limits.
Scattered T2 hyperintense lesions are seen within the cerebral white matter showing a morphology and distribution compatible with demyelinating disease. If necessary, the differential can be broadened to include sequelae of other inflammatory or infectious processes, gliosis, and vasculitis, though these possibilities are considered less likely.