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A patient with epilepsy with a subtle right-sided parieto-occipital polymicrogyria faintly seen on axial T2-weighted imaging at 3T (A, magnified inset B) with improved characterization at 7T (C, magnified inset D). Internal architecture and heterogeneity are also much better appreciated at 7T. SWI 7T minimum-intensity-projection demonstrates a cluster of venous structures (arrowheads) associated with the polymicrogyria (E, magnified inset F).
