Patient 16. MR imaging findings in a 4-year-old boy with microcephalia, motor delay, and facial deformities.
A, Coronal IR T1-weighted image (11520/60/400/2) shows bilateral cerebellar defective foliation and irregularity of the gray/white matter junction (black arrowheads). Note subependymal heterotopia along the floor of the left temporal horn (white arrow).
B, Coronal IR T1-weighted images (11520/60/400/2) shows heterotopia (white arrow) and associated cortical dysplasia of parahippocampal gyrus (asterisk).