Brain MRI of a 33-year-old woman with postpartum angiopathy (reversible cerebral vasoconstriction syndrome)

Head MRI axial cuts: FLAIR (A, B, E, F) and apparent diffusion coefficient map (C, D, G, H) sequences.
Upper panel MRI, performed on admission, showed FLAIR hyperintensities and diffusion restriction in the right parietal lobe and in the splenium of the corpus callosum (arrows). Lower panel, done on hospital day 3 when the patient deteriorated, showed worsening bilateral lesions involving the cortex and subcortical white matter of the parietal, posterior frontal, and occipital lobes (arrows).