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Hereditary persistence of fetal hemoglobin (HPFH) associated with beta-thalassemia is characterized by high hemoglobin (Hb) F levels and an increased number of fetal-Hb-containing-cells.
Features include very common findings: Pallor, Enlarged spleen (splenomegaly), Low red blood cell count (anemia), and Persistence of hemoglobin F; and common findings: Enlarged liver (hepatomegaly) and Abnormal bone structure (abnormal bone structure).
Organ System | Phenotype Count | Example Features |
|---|---|---|
Blood and immune system | 3 | Enlarged spleen (splenomegaly), Low red blood cell count (anemia), Persistence of hemoglobin F |
Phenotype severity distribution: 4 very common features, 2 common features.
Estimated prevalence: Unknown (Unknown prevalence).
No clinical trials have been registered for hereditary persistence of fetal hemoglobin-beta-thalassemia syndrome.
2 publications have been identified in PubMed for hereditary persistence of fetal hemoglobin-beta-thalassemia syndrome. Research spans Case Report / Case Series (50%) and Epidemiology / Natural History (50%).
Tashfeen S (2025). [PMID: 40373022](https://pubmed.ncbi.nlm.nih.gov/40373022/). *PloS one*. [Epidemiology / Natural History]
Daniel CE (2025). [PMID: 40084327](https://pubmed.ncbi.nlm.nih.gov/40084327/). *Cureus*. [Case Report / Case Series]
Data assembled from 4 of 12 sources · Last updated Oct 4, 2026, 2:20 AM UTC
European rare disease database
Genetic and Rare Diseases Info Center
Digestive system | 2 | Enlarged spleen (splenomegaly), Enlarged liver (hepatomegaly) |
Bones and joints | 1 | Abnormal bone structure (abnormal bone structure) |