Magnetic resonance imaging (MRI) scan of a 1-year-old boy who was born at gestational week 27. Clinical examination is consistent with spastic diplegic cerebral palsy. Pseudocolpocephaly and decreased volume of the white matter posteriorly are consistent with periventricular leukomalacia. Evidence of diffuse polymicrogyria and thinning of the corpus callosum is noted.

emedicine.medscape.com/article/310740-overview