disease arises from structure disease arises from alteration in structure 3q26 (Human) syndrome caused by partial chromosomal duplication partial duplication of the long arm of chromosome 3 3q26 microduplication syndrome https://github.com/monarch-initiative/mondo/issues/3492 https://www.malacards.org/card/3q26_microduplication_syndrome dup(3q) syndrome MONDO:0019878 UMLS:C4755319 3q26 microduplication syndrome is a rare chromosomal anomaly characterized by prenatal and postnatal growth retardation, developmental delay, intellectual impairment, dysmorphic signs and variable combination of congenital anomalies, including cardiovascular, genitourinary and skeletal anomalies and spectrum of caudal malformations. GARD:0019311 Orphanet:96095 dup(3)(q26) Cornelia de Lange-like syndrome trisomy 3q26 MEDGEN:1670584 obsolete chromosomal anomaly with cataract