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 Waardenburg syndrome characterized by pigmentary abnormalities of the hair, skin, and eyes, congenital sensorineural hearing loss, and Hirschsprung disease that has_material_basis_in heterozygous or homozygous mutation in the EDNRB gene on chromosome 13q22. (DO)
Synonyms:
exact_synonym:
WAARDENBURG SYNDROME WITH HIRSCHSPRUNG DISEASE, TYPE 4A; WS4A; Waardenburg syndrome type IVA