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Features include always present findings: Increased mean platelet volume, Impaired collagen-induced platelet aggregation, and Bruising susceptibility; and very common findings: Menorrhagia and Macrothrombocytopenia. 12 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Blood and immune system | 7 | Excessive bleeding from superficial cuts, Increased mean platelet volume, Impaired collagen-induced platelet aggregation |
TPM4 function has not been fully characterized.
Bleeding disorder, platelet-type, 25 is associated with mutations in the TPM4 gene on chromosome 19.
Genetic testing for TPM4 is available. Testing is considered confirmatory for diagnosis.
Biomarker and diagnostic research for bleeding disorder, platelet-type, 25 has been reported in the published literature.
Phenotype severity distribution: 3 always present features, 2 very common features, 6 common features.
No clinical trials have been registered for bleeding disorder, platelet-type, 25.
3 publications have been identified in PubMed for bleeding disorder, platelet-type, 25. Kisho has analyzed 2 by research type. Research spans Other (50%) and Diagnostic / Biomarker (50%).
Hassan E (2025). [PMID: 40486211](https://pubmed.ncbi.nlm.nih.gov/40486211/). *Res Pract Thromb Haemost*. [Diagnostic / Biomarker]
Di Buduo CA (2025). [PMID: 40177221](https://pubmed.ncbi.nlm.nih.gov/40177221/). *Res Pract Thromb Haemost*. [Other]
Data assembled from 5 of 12 sources · Last updated Sep 18, 2026, 8:30 AM UTC
Online Mendelian Inheritance in Man
Common questions about bleeding disorder, platelet-type, 25