label: lissencephaly with cerebellar hypoplasia type D
label_lc: lissencephaly with cerebellar hypoplasia type d
description: Lissencephaly with cerebellar hypoplasia type D (LCHd) is a form of lissencephaly with cerebellar hypoplasia characterized by pronounced microcephaly (at least B1 3 SD), intellectual disability, spastic diplegia and moderate to severe cerebellar hypoplasia involving both vermis and hemispheres.