RGD uses the Human Disease Ontology (DO, https://disease-ontology.org/) for disease curation across species. RGD automatically downloads each new release of the ontology on a monthly basis. Some additional terms which are required for RGD's curation purposes but are not currently covered in the official version of DO have been added. As corresponding terms are added to DO, these custom terms are retired and the DO terms substituted in existing annotations and subsequently used for curation.
A chromosomal duplication syndrome that is characterized by motor, speech and language delay, behavior problems, intellectual disability, low muscle tone (hypotonia), an increased head circumference (macrocephaly), facial dysmorphism, seizures, brain abnormalities, and heart defects such as enlargement of the blood vessel that carries blood from the heart to the rest of the body (aortic dilatation) and that has_material_basis_in an extra copy of a region of the long arm of chromosome 7. (DO)
Synonyms:
exact_synonym:
7q11.23 microduplication syndrome; WBS duplication syndrome; William-Beuren region duplication syndrome; Williams-Beuren Region Duplication Syndrome; chromosome 7q11.23 duplication syndrome
narrow_synonym:
Somerville-Van der Aa syndrome; WBS triplication syndrome; chromosome 7q11.23 triplication syndrome