Fig. 1
Cranial MRI of a 31-year-old woman with eclampsia with PRES: a axial T2W FLAIR-SPIR, b axial DWI with b value of 1000 s/mm2, c axial ADC map. SBE was evaluated according to the distribution and the degree of abnormal edema signal, which presented as heterogeneous hyperintense signal (arrow) on T2W FLAIR-SPIR (a). Large area fusions of abnormal edema signals were shown in corpus callosum, bilateral occipital, parietal, frontal, and temporal lobes; and multiple flecks, patches or nodules of abnormal edema signals without fusion were seen in the cerebellum and right basal ganglia. The SBE of typical regions, atypical regions, and all regions in this patient were 12, 19, and 31, respectively. Some of the abnormal edema signals in bilateral frontal lobes, left parietal and temporal lobes presented as hyperintense signals (arrow) on DWI (b), with the lesion in left temporal lobe locally appearing as hypointense signal (arrow) on ADC map (c)