disease arises from structure disease arises from alteration in structure 20q11.2 (Human) syndromic intellectual disability syndrome caused by partial chromosomal deletion multiple congenital anomalies/dysmorphic syndrome-intellectual disability partial deletion of the long arm of chromosome 20 20q11.2 microdeletion syndrome https://github.com/monarch-initiative/mondo/issues/3664 https://www.malacards.org/card/20q112_microdeletion_syndrome Orphanet:444051 monosomy 20q11 UMLS:C5680063 Del(20)(q11.2) 20q11.2 microdeletion syndrome is a rare, genetic, syndromic intellectual disability characterized by psychomotor delay, hypotonia, feeding difficulties, failure to thrive, anomalies of the hands and feet (clinodactyly, camptodactyly, brachydactyly, feet malposition), and craniofacial dysmorphism. Associated prenatal growth retardation, and gastrointestinal, heart and eye anomalies have been reported. MEDGEN:1810637 GARD:0021859 MONDO:0018633