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The Mouse Adult Gross Anatomy Ontology and Mammalian Phenotype Ontology are downloaded weekly from the Mouse Genome Informatics databases at Jackson Laboratories ( For more information about these ontologies, see the MGI Publications Page at

Term:abnormal megakaryocyte morphology
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Accession:MP:0002417 term browser browse the term
Definition:any structural anomaly of the giant 50 to 100 micron diameter cells with greatly lobulated nuclei found in the bone marrow; mature blood platelets are released from their cytoplasm
Synonyms:exact_synonym: abnormal megacaryocyte morphology;   abnormal megalocaryocyte morphology;   abnormal megalokaryocyte morphology;   megakaryocyte abnormalities

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decreased megakaryocyte cell number term browser
Symbol Object Name Evidence Notes Source PubMed Reference(s) RGD Reference(s) Position
S WF/NHsd IAGP compared to SD RGD PMID:3414775 RGD:11531112

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  mammalian phenotype 5375
    hematopoietic system phenotype 244
      abnormal hematopoietic system morphology/development 224
        abnormal hematopoietic cell morphology 180
          abnormal bone marrow hematopoietic cell morphology 1
            abnormal megakaryocyte morphology 1
              abnormal megakaryocyte differentiation 0
              decreased megakaryocyte cell number + 1
              increased megakaryocyte cell number 0
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