U.S. flag

An official website of the United States government

GTR Home > Tests > Waardenburg syndrome, type 4B, 613265, Autosomal recessive, Autosomal dominant; WS4B (Waardenburg-Shah syndrome) (MLPA)

Indication

This is a clinical test intended for Help: Diagnosis

Clinical summary

Help

Imported from OMIM

Waardenburg syndrome type 4 is an auditory-pigmentary syndrome characterized by pigmentary abnormalities of the eye, deafness, and Hirschsprung disease (review by Read and Newton, 1997). WS type 4B is caused by mutation in the EDN3 gene (131242). WS type 4 is genetically heterogeneous (see WS4A; 277580). For a description of other clinical variants of Waardenburg syndrome, see WS1 (193500), WS2 (193510), and WS3 (148820).

Clinical features

Help

Imported from Human Phenotype Ontology (HPO)

  • Sensorineural hearing impairment
  • Aganglionic megacolon
  • Premature graying of hair
  • White forelock
  • Heterochromia iridis
  • Blue irides
  • Hypopigmented skin patches
  • White eyelashes
  • White eyebrow
Show all

Conditions tested

Target population

Help

Waardenburg syndrome, type 4B, 613265, Autosomal recessive, Autosomal dominant; WS4B (diagnosis/ clinical suspition/ etiology investigation/ classification)

Citations

Not provided

Clinical validity

Help

Not provided

Clinical utility

Help

Not provided

IMPORTANT NOTE: NIH does not independently verify information submitted to the GTR; it relies on submitters to provide information that is accurate and not misleading. NIH makes no endorsements of tests or laboratories listed in the GTR. GTR is not a substitute for medical advice. Patients and consumers with specific questions about a genetic test should contact a health care provider or a genetics professional.