FIG 1. PRES in a pregnant woman with eclampsia (patient 21).

A–C, Axial fluid-attenuated inversion recovery (FLAIR) MR images (TR/TE/TI/NEX, 11,002/140/2250/1; FOV, 20) show symmetric abnormal signal intensity, primarily in the territories of the posterior circulation. The affected area predominantly involves the white matter, but cortex is also involved. Note the involvement of the caudates, which was unusual in our series.

D–F, Isotropic diffusion-weighted MR images (TR/TE, 10,000/91.7; FOV, 40; b = 1,000 s/mm²) show low to normal signal intensity in the areas of the FLAIR abnormality.

G–I, ADC maps show increased values in the areas of FLAIR abnormality.