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Features include always present findings: Decreased total B cell count and Recurrent infections; and common findings: Diarrhea, Pyoderma gangrenosum, Bronchiectasis, and Recurrent aphthous stomatitis and others. 16 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Blood and immune system | 4 | Recurrent infections, Enlarged spleen (splenomegaly), Decreased total neutrophil count |
WDR1 function has not been fully characterized.
Periodic fever, immunodeficiency, and thrombocytopenia syndrome is associated with mutations in the WDR1 gene on chromosome 4.
Genetic testing for WDR1 is available. Testing is considered confirmatory for diagnosis.
Phenotype severity distribution: 2 always present features, 9 common features.
No clinical trials have been registered for periodic fever, immunodeficiency, and thrombocytopenia syndrome.
2 publications have been identified in PubMed for periodic fever, immunodeficiency, and thrombocytopenia syndrome. Research spans Review / Meta-Analysis (100%).
AlSaleem A (2025). [PMID: 40739506](https://pubmed.ncbi.nlm.nih.gov/40739506/). *Pediatric rheumatology online journal*. [Review / Meta-Analysis]
Belot A (2025). [PMID: 39964335](https://pubmed.ncbi.nlm.nih.gov/39964335/). *ACR open rheumatology*. [Review / Meta-Analysis]
Data assembled from 6 of 12 sources · Last updated Sep 21, 2026, 12:37 AM UTC
Online Mendelian Inheritance in Man
European rare disease database
Digestive system |
2 |
Diarrhea, Enlarged spleen (splenomegaly) |
Lungs and breathing | 2 | Bronchiectasis, Recurrent pneumonia |
Brain and nerves | 1 | Specific learning disability |
Metabolism | 1 | Recurrent fever |