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FIG 3. MR imaging performed at 34 weeks gestation because of mild (12-mm) dilatation of the left lateral ventricle at US. T2-weighted axial section at the level of the vertex shows diffuse bilateral frontal hyperintensity (hypointensity on T1-weighted imaging, not shown). Images also showed left lateral ventriculomegaly (12.5 mm) and a left subependymal pseudocyst. An ischemic process was suggested and because of the diffuse frontal abnormality, a termination of pregnancy was performed at 36 weeks gestation. NFP revealed a diffuse softening of the white matter with periventricular gliosis.