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MRI of four different patients illustrating schizencephaly and polymicrogyria. Axial T2- and T1-weighted and coronal T1-weighted MRIs from a patient with open-lip schizencephaly (A–C) and axial T1-weighted images from a patient with closed-lip schizencephaly (D–F); axial T1-weighted image from a patient with bilateral polymicrogyria (G) and coronal and sagittal T1-weighted image from a patient with left unilateral polymicrogyria (H, I).
