fig 3.

 Case 3. Axial T2-weighted MR image at age 3 months shows marked dilatation of the lateral ventricles. The white matter is markedly and diffusely hyperintense whereas the basal ganglia are spared.

fig 4. Case 4.

A and B, Axial proton density–weighted (A) and T2-weighted (B) MR images at 24 months show slight supratentorial white matter loss and delayed myelination with hyperintense areas in the posterior paraventricular regions (arrows). A focal area of gliosis in the nucleocapsular regions is depicted as hyperintense focus both on proton density—and T2-weighted images (arrowhead).