FIG 5.

A and B, Coronal and axial single-shot [SS]-FSE T2-weighted sections of a 21 weeks' GA fetus show unilateral increased volume of the GE (arrows) with homolateral hemimegalencephaly. C and D, Sagittal and axial SS-FSE T2-weighted sections of another 21 weeks' GA fetus showing unilateral increased volume of the GE (arrows). Associated anomalies were early-stage unilateral polymicrogyria and hemimegalencephaly. In both cases, the normal brain mantle layering for age was deranged in the enlarged hemisphere. E–G, A GA-matched control.