Waardenburg Syndrome, Type 4a; Ws4a

Description

Waardenburg syndrome type 4 (WS4), also known as Waardenburg-Shah syndrome, is an auditory-pigmentary syndrome characterized by pigmentary abnormalities of the hair, skin, and eyes, congenital sensorineural hearing loss, and Hirschsprung disease (reviews by Read and Newton, 1997 and Pingault et al., 2010). WS type 4A is caused by mutation in the EDNRB gene (OMIM ). Clinical Variability of Waardenburg Syndrome Types 1-4Waardenburg syndrome has been classified into 4 main phenotypes. Type I Waardenburg syndrome (WS1 ) is characterized by pigmentary abnormalities of the hair, including a white forelock and premature graying; pigmentary changes of the iris, such as heterochromia iridis and brilliant blue eyes; congenital sensorineural hearing loss; and 'dystopia canthorum.' WS type II (WS2) is distinguished from type I by the absence of dystopia canthorum. WS type III (WS3 ) has dystopia canthorum and is distinguished by the presence of upper limb abnormalities. WS type 4 has the additional feature of Hirschsprung disease (reviews by Read and Newton, 1997 and Pingault et al., 2010). Genetic Heterogeneity of Waardenburg Syndrome Type 4Waardenburg syndrome type 4 is genetically heterogeneous. WS4B (OMIM ) is caused by mutation in the EDN3 gene (OMIM ) on chromosome 20q13, and WS4C (OMIM ) is caused by mutation in the SOX10 gene (OMIM ) on chromosome 22q13.

Clinical Features

Top most frequent phenotypes and symptoms related to Waardenburg Syndrome, Type 4a; Ws4a

  • Intellectual disability
  • Global developmental delay
  • Hearing impairment
  • Ataxia
  • Nystagmus
  • Sensorineural hearing impairment
  • Muscular hypotonia
  • Ptosis
  • Wide nasal bridge
  • Intellectual disability, mild

And another 21 symptoms. If you need more information about this disease we can help you.

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Incidence and onset information

— Currently we don't have prevalence information about this disease (Not enough data available about incidence and published cases.)
No data available about the known clinical features onset.

Alternative names

Waardenburg Syndrome, Type 4a; Ws4a Is also known as waardenburg-shah syndrome, waardenburg syndrome, type iva, ws4, waardenburg syndrome with hirschsprung disease, type 4a, shah-waardenburg syndrome.

Researches and researchers

Currently, we don't have any information about doctors, researches or researchers related to this disease. Please contact us if you would like to appear here.


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Waardenburg Syndrome, Type 4a; Ws4a Recommended genes panels

Panel Name, Specifity and genes Tested/covered
Hearing Loss Advanced Sequencing and CNV Evaluation.

By Athena Diagnostics Inc (United States).

BCS1L, ROR1, SALL1, SEMA3E, SIX1, SIX5, SLC12A1, SLC19A2, SLC22A4, SNAI2, SMPX, SOX10, TBX1, TCOF1, TECTA, TFAP2A, TIMM8A, TJP2, TMPRSS3, USH1C , (...)

View the complete list with 149 more genes
Specificity
1 %
Genes
100 %
NGS Hearing Loss Panel.

By Greenwood Genetic Center Diagnostic Laboratories Greenwood Genetic Center (United States).

SIX1, SNAI2, SMPX, SOX10, TECTA, TIMM8A, TJP2, TMPRSS3, USH1C, USH2A, CLRN1, TSPEAR, WFS1, ESPN, CDH23, CACNA1D, ACTG1, PCDH15, USH1G, WHRN , (...)

View the complete list with 70 more genes
Specificity
2 %
Genes
100 %
Waardenburg syndrome, type 4A.

By Center for Human Genetics, Inc (United States).

EDNRB
Specificity
100 %
Genes
100 %
Waardenburg Syndrome Type IVA - EDNRB Sequencing.

By Children's Hospital Colorado Molecular Genetics Laboratory Children's Hospital Colorado (United States).

EDNRB
Specificity
100 %
Genes
100 %
OtoSCOPE.

By Molecular Otolaryngology and Renal Research Laboratories University of Iowa Hospital and Clinics (United States).

ROR1, SIX1, SIX5, SLC22A4, SNAI2, SMPX, SOX10, TBX1, TWNK, TCOF1, TECTA, TIMM8A, TJP2, TMPRSS3, USH1C, USH2A, CLRN1, TSPEAR, WFS1, ESPN , (...)

View the complete list with 130 more genes
Specificity
1 %
Genes
100 %
Hearing Loss Panel.

By Knight Diagnostic Laboratories - Molecular Diagnostic Center Oregon Health & Science University (United States).

RPS6KA3, SALL1, SEMA3E, SIX1, SIX5, SLC19A2, SNAI2, SMPX, SOX10, BTD, TCOF1, TECTA, TIMM8A, TJP2, TMPRSS3, USH1C, USH2A, CLRN1, WFS1, ESPN , (...)

View the complete list with 100 more genes
Specificity
1 %
Genes
100 %
OtoGenome Test for Hearing Loss (110 Genes).

By Laboratory for Molecular Medicine Partners HealthCare Personalized Medicine (United States).

BCS1L, SIX1, SNAI2, SMPX, SOX10, TECTA, TIMM8A, TMPRSS3, USH1C, USH2A, CLRN1, WFS1, ESPN, CLIC5, CDH23, CABP2, RIPOR2, CACNA1D, ACTG1, PCDH15 , (...)

View the complete list with 89 more genes
Specificity
1 %
Genes
100 %
Waardenburg Seq + Del/Dup Analysis.

By Division of Genomic Diagnostics The Children's Hospital of Philadelphia (United States).

SNAI2, SOX10, EDN3, EDNRB, MITF, PAX3
Specificity
17 %
Genes
100 %

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Sources and references

You can check the following sources for additional information.

OMIM Rare Disease Symptoms Checker

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