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Hidrotic ectodermal dysplasia, Halal type is a form of ectodermal dysplasia syndrome characterized by trichodysplasia, with absent eyebrows and eyelashes, onychodysplasia, mild retrognathia, abnormal dermatoglyphics (excess of whorls on fingertips, radial loop on finger, hypothenar pattern), intellectual disability and normal teeth and sweating. Additional variable manifestations include high implanted or prominent ears, mild hearing loss, supernumerary nipple, cafC)-au-lait spots, keratosis pilaris, and irregular menses. To date, four individuals from 2 generations of a consanguineous family of Portuguese descent have been described in the literature. Males and females were equally affected. Hidrotic ectodermal dysplasia, Halal type is inherited in an autosomal recessive manner.
Biomarker and diagnostic research for hidrotic ectodermal dysplasia, Halal type has been reported in the published literature.
Estimated prevalence: <1 in 1,000,000 (VERY_RARE).
No clinical trials have been registered for hidrotic ectodermal dysplasia, Halal type.
193 publications have been identified in PubMed for hidrotic ectodermal dysplasia, Halal type. Research spans Review / Meta-Analysis (59%), Basic Science / Preclinical (15%), and Epidemiology / Natural History (15%).
Research Type | Count | % of Total |
|---|---|---|
Research summaries | 98 | 59% |
Data assembled from 3 of 12 sources · Last updated Sep 19, 2026, 11:53 AM UTC
European rare disease database
Genetic and Rare Diseases Info Center
Laboratory research
24 |
15% |
Disease patterns and progression | 24 | 15% |
Patient case studies | 10 | 6% |
Testing and diagnosis research | 5 | 3% |
Clinical study results | 4 | 2% |
Rautiainen N (2026). [PMID: 41074678](https://pubmed.ncbi.nlm.nih.gov/41074678/). *Am J Med Genet A*. [Case Report / Case Series]
Tiwari V (2026). [PMID: 34283518](https://pubmed.ncbi.nlm.nih.gov/34283518/). *Unknown Journal*. [Epidemiology / Natural History]
Anderson EN (2026). [PMID: 41468891](https://pubmed.ncbi.nlm.nih.gov/41468891/). *American journal of human genetics*. [Basic Science / Preclinical]
Amado C (2026). [PMID: 40975490](https://pubmed.ncbi.nlm.nih.gov/40975490/). *Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology*. [Review / Meta-Analysis]
Papazachariou A (2026). [PMID: 41128447](https://pubmed.ncbi.nlm.nih.gov/41128447/). *Curr Opin Clin Nutr Metab Care*. [Review / Meta-Analysis]
Shah M (2026). [PMID: 29083768](https://pubmed.ncbi.nlm.nih.gov/29083768/). *Unknown Journal*. [Epidemiology / Natural History]
Ferri C (2026). [PMID: 41798958](https://pubmed.ncbi.nlm.nih.gov/41798958/). *Front Immunol*. [Review / Meta-Analysis]
Tripathi M (2026). [PMID: 36256770](https://pubmed.ncbi.nlm.nih.gov/36256770/). *Unknown Journal*. [Epidemiology / Natural History]
Sebode M (2026). [PMID: 41432137](https://pubmed.ncbi.nlm.nih.gov/41432137/). *Current opinion in gastroenterology*. [Review / Meta-Analysis]
Lee S (2026). [PMID: 41206258](https://pubmed.ncbi.nlm.nih.gov/41206258/). *Am J Geriatr Psychiatry*. [Review / Meta-Analysis]