FIG 8. Case 21: 7-year-old girl with bilateral perisylvian, lateral parietal, and parieto-occipital polymicrogyria.

A, Axial SE (2000/40) image shows polymicrogyria (arrows) involving the parasagittal parieto-occipital cortex and the lateral parietal cortex.

B, Sagittal SE (600/20) image shows the polymicrogyria involving the entire perisylvian cortex (solid white arrows) and extending posteriorly into the parietal (open black arrows) and occipital (open white arrows) lobes.