disease arises from structure disease arises from alteration in structure 15q11.2 (Human) syndrome caused by partial chromosomal deletion chromosome 15q11.2 deletion syndrome https://github.com/monarch-initiative/mondo/issues/3664 https://www.malacards.org/card/chromosome_15q112_deletion_syndrome Del(15)(q11.2) chromosome 15q11.2 deletion syndrome GARD:0010525 chromosome 15q11.2 deletion Orphanet:261183 UMLS:C3180937 MEDGEN:467404 OMIM:615656 15q11.2 BP1-BP2 microdeletion syndrome 15q11.2 microdeletion MONDO:0014294 DOID:0060393 monosomy 15q11.2 15q11.2 microdeletion syndrome is a rare partial autosomal monosomy with a variable phenotypic expression and reduced penetrance associated with an increased susceptibility to neuropsychiatric or neurodevelopmental disorders including delayed psychomotor development, speech delay, autism spectrum disorder, attention deficit-hyperactivity disorder, obsessive-compulsive disorder, epilepsy or seizures. It may also include mild non-specific dysmorphic features (such as dysplastic ears, broad forehead, hypertelorism), cleft palate, neurological and neuroimaging abnormalities (such as ataxia and muscular hypotonia). 15q11.2 microdeletion syndrome chromosome 15q11.2 microdeletion partial deletion of the long arm of chromosome 15