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The Human Phenotype Ontology (HPO) is downloaded weekly from The file downloaded is considered the "last stable build" available for the ontology. For more about the HPO, view their website at

Term:Increased megakaryocyte count
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Accession:HP:0005513 term browser browse the term
Definition:Increased megakaryocyte number, i.e., of platelet precursor cells, present in the bone marrow.
Synonyms:xref: UMLS:C4025187

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  Human phenotype 0
    Phenotypic abnormality 0
      Abnormality of blood and blood-forming tissues 0
        Abnormality of bone marrow cell morphology 0
          Abnormal megakaryocyte morphology 0
            Increased megakaryocyte count 0
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