T2-weighted axial image, gestational age 27 weeks, showing severe ventriculomegaly, megalencephaly (> P97) and polymicrogyria, the latter characterized by the spicular, irregular outlining of the cerebral surface. Tentative diagnosis of MPPH (megalencephaly – perisylvian polymicrogyria - post-axial polydactyly - hydrocephalus) syndrome based on the additional finding of bilateral post-axial polydactyly.