Microcephaly 18, Primary, Autosomal Dominant, also known as mcph18, is related to isolated growth hormone deficiency and microcephaly 2, primary, autosomal recessive, with or without cortical malformations. An important gene associated with Microcephaly 18, Primary, Autosomal Dominant is WDFY3 (WD Repeat And FYVE Domain Containing 3), and among its related pathways/superpathways is Cell Cycle, Mitotic. Affiliated tissues include cortex and brain, and related phenotypes are microcephaly and intellectual disability, mild