Term Name:	Waardenburg syndrome type 4B
Synonyms:	Waardenburg syndrome type IVB, Waardenburg syndrome with Hirschsprung disease type 4B, WS4B
Definition:	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 homozygous and heterozygous mutation in the EDN3 gene on chromosome 20q13.
Ontology:	Human Disease [DOID:0110954]   ( DOID:0110954 )