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Figure 1 Middle panel: Coronal T1‐weighted image showing unilateral periventricular heterotopia. Note that the cortex above the lesion is abnormal, and probably contains areas of polymicrogyria. Left panel: Axial T1‐weighted image showing that the lesion involves mostly watershed areas at the frontal and occipital lobes (arrows). Right panel: Coronal T1‐weighted image showing atrophy of the left hippocampal formation (box).
