Figure 5b. Posterior reversible encephalopathy syndrome in a 32-year-old woman with sickle cell trait who was 36 weeks pregnant and presented with eclampsia. (a) Axial FLAIR MR image shows symmetric edema in the thalami and basal ganglia. (b) Axial FLAIR MR image shows diffuse edema in the pons. Follow-up MR images obtained 2 months later were normal.