Figure 2a. Complete (irreversible) cerebral infarctions in a 24-year-old woman who developed cortical blindness after difficult labor. (a) Axial diffusion-weighted MR image shows restricted diffusion in both occipital lobes, primarily in the arterial watershed zones. (b) Axial FLAIR MR image shows corresponding edema and mass effect. MR imaging performed 7 weeks later showed corresponding laminar necrosis and cortical atrophy.