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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:Hypoplasia of the musculature
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Accession:HP:0009004 term browser browse the term
Definition:Underdevelopment of the musculature.
Synonyms:exact_synonym: Muscle hypoplasia;   Poorly developed skeletal musculature;   Underdeveloped muscle;   Underdeveloped muscles
 alt_id: HP:0009034
 xref: SNOMEDCT_US:205530002;   UMLS:C0240414

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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 musculoskeletal system 0
        Abnormality of the musculature 0
          Abnormal skeletal muscle morphology 0
            Abnormality of muscle size 0
              Aplasia/Hypoplasia involving the skeletal musculature 0
                Hypoplasia of the musculature 0
                  Calf muscle hypoplasia 0
                  Neck muscle hypoplasia 0
                  Pectoralis hypoplasia 0
                  Shoulder muscle hypoplasia + 0
                  Upper limb muscle hypoplasia + 0
paths to the root