Female, 33 years old, with multiple sclerosis, presenting with gait ataxia, follow-up for progression. Confluent periventricular T2 hyperintensity with corresponding moderate to marked T1 hypointensity is redemonstrated showing no significant interval change. The corpus callosum is diffusely involved and markedly thinned. Lesions are also evident within the basal ganglia, brainstem and cerebellum, also without significant interval change. No new lesions are seen. No evidence of parenchymal edema or mass effect is detected. Significant parenchymal volume loss is unchanged.
Stable extensive white matter disease compatible with multiple sclerosis.