Brain magnetic resonance imaging (MRI) characteristics of study subjects.

Brain MRI was not done for 2 subjects and results were unknown in 4 subjects.aimes could not be calculated for 7 subjects.bpc13/15 cases also had basal ganglia hyperintensity.dHyperintensity on DWI/FLAIR in 2 or more cortical areas (temporal, parietal, or occipital lobes) [15].eHigh signal abnormalities in caudate nucleus and putamen or at least two cortical regions (temporal-parietal-occipital) either in DWI or FLAIR [15].