Brain MRI (patient 2, at the age of 1 month): Axial T2-weighted images (
A,B
) showing several areas of bilateral symmetric abnormal signal intensity, with diffusion restriction (
D–F
) in the lentiform nuclei, internal capsule, thalami, brainstem, dentate nuclei, and cortical and subcortical regions. Sagittal T1-w images
(C)
show hypointensity in the affected areas and a thin corpus callosum.