FIG 5. Infant born at 37 6/7 weeks.

A and B, Coronal sonogram (A) at a PCA of 39 weeks shows a strikingly asymmetrical increased echogenicity of the periventricular white matter, predominantly in the left parietal region, with an inhomogeneous aspect. In addition, intraventricular and germinal-layer hemorrhages were present. T1-weighted MR image on the same day in the axial plane (B) shows extensive signal intensity changes and hemorrhagic lesions throughout the left hemisphere and a small periventricular hemorrhage on the other side.