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Any autosomal recessive non-syndromic intellectual disability in which the cause of the disease is a mutation in the WASHC4 gene.
Features include always present findings: Delayed speech and language development, Short stature, Delayed ability to walk, and Profound intellectual disability and others; and common findings: Highly arched eyebrow, Microcephaly, Strabismus, and Dorsal hirsutism and others. 19 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Brain and nerves | 8 | Delayed speech and language development, Profound intellectual disability, Global developmental delay |
Head and neck | 2 | Microcephaly, Thin upper lip vermilion |
Eyes | 1 | Strabismus |
Growth and development | 1 | Short stature |
Muscles | 1 | Low muscle tone (hypotonia) |
WASHC4 function has not been fully characterized.
Intellectual disability, autosomal recessive 43 is associated with mutations in the WASHC4 gene on chromosome 12.
Genetic testing for WASHC4 is available. Testing is considered confirmatory for diagnosis.
Phenotype severity distribution: 10 always present features, 8 common features.
No clinical trials have been registered for intellectual disability, autosomal recessive 43.
3 publications have been identified in PubMed for intellectual disability, autosomal recessive 43. Research spans Case Report / Case Series (33%), Basic Science / Preclinical (33%), and Epidemiology / Natural History (33%).
Pan X (2026). [PMID: 41764152](https://pubmed.ncbi.nlm.nih.gov/41764152/). *J Mol Med (Berl)*. [Epidemiology / Natural History]
Singla A (2025). [PMID: 40448120](https://pubmed.ncbi.nlm.nih.gov/40448120/). *BMC Med Genomics*. [Basic Science / Preclinical]
Dolu MH (2024). [PMID: 39051604](https://pubmed.ncbi.nlm.nih.gov/39051604/). *J Child Neurol*. [Case Report / Case Series]
Data assembled from 5 of 12 sources · Last updated Sep 19, 2026, 5:33 AM UTC
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