Cri-Du-Chat Syndrome, also known as 5p partial monosomy syndrome, is related to microcephaly and down syndrome. An important gene associated with Cri-Du-Chat Syndrome is CTNND2 (Catenin Delta 2), and among its related pathways/superpathways is Cell adhesion_Endothelial cell contacts by junctional mechanisms. Affiliated tissues include eye and heart, and related phenotypes are hypotonia and wide nasal bridge