MONDO_0012964 (chromosome 15q26-qter deletion syndrome) can be described as follows. Distal monosomy 15q is a rare chromosomal anomaly syndrome characterized by pre- and postnatal growth restriction, developmental delay, variable degrees of intellectual disability, hand and foot anomalies (e.g. brachy-/clinodactyly, talipes equinovarus, nail hypoplasia, proximally placed digits) and mild craniofacial dysmorphism (incl. microcephaly, triangular face, broad nasal bridge, micrognathia). Neonatal lymphedema, heart malformations, aplasia cutis congenita, aortic root dilatation, and autistic spectrum disorder have also been reported. Also known as: 15q26 deletion syndrome, Drayer syndrome, chromosome 15q26-qter deletion syndrome, isolated cases, distal 15q deletion syndrome, distal monosomy 15q, distal monosomy type 15q, monosomy 15q26, telomeric 15q deletion syndrome.