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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:Aplasia/Hypoplasia of the pyramidal tract
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Accession:HP:0007363 term browser browse the term
Synonyms:xref: UMLS:C4024903

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Term paths to the root
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Term Annotations click to browse term
  Human phenotype 0
    Phenotypic abnormality 0
      Abnormality of the nervous system 0
        Abnormal nervous system morphology 0
          Morphological central nervous system abnormality 0
            Aplasia/Hypoplasia involving the central nervous system 0
              Aplasia/Hypoplasia of the pyramidal tract 0
                Aplasia of the pyramidal tract 0
                Hypoplasia of the pyramidal tract 0
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