Bilateral almost symmetrical cortical and subcortical confluent hyperintensity on T2WI and FLAIR sequences in areas of the parietal and occipital lobes, with corresponding hypointensity on T1WI, and multiple T2WI/FLAIR hyperintense foci in the subcortical white matter of both frontal lobes, without diffusion restriction or haemorrhagic components.
Normal MRV study.