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Sagittal SSFSE T2-W image in a 22 gestational week fetus demonstrates multiple abnormal infoldings of the cortex (black arrows). The lateral ventricle has an abnormal shape with multiple undulations along its margin and periventricular nodular heterotopia (white arrows). The multilayered pattern of the supratentorial parenchyma is absent. A diagnosis of Aicardi syndrome was confirmed postnatally. (Reprinted with permission [51])
