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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:EMG abnormality
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Accession:HP:0003457 term browser browse the term
Definition:Abnormal results of investigations using electromyography (EMG).
Synonyms:exact_synonym: Abnormal EMG;   Abnormal electromyography finding;   EMG abnormalities;   Electromyogram abnormal
 alt_id: HP:0002177;   HP:0003751;   HP:0003753;   HP:0100286
 xref: SNOMEDCT_US:274523007;   UMLS:C0476403

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  Human phenotype 0
    Phenotypic abnormality 0
      Abnormality of the musculoskeletal system 0
        Abnormality of the musculature 0
          Abnormal muscle physiology 0
            EMG abnormality 0
              Abnormal single motor unit action potential 0
              EMG: axonal abnormality + 0
              EMG: continuous motor unit activity at rest 0
              EMG: impaired neuromuscular transmission + 0
              EMG: myokymic discharges 0
              EMG: myopathic abnormalities 0
              EMG: myotonic discharges 0
              EMG: myotonic runs 0
              EMG: neuropathic changes + 0
              EMG: repetitive nerve stimulation abnormality 0
              EMG: slow motor conduction 0
              Single fiber EMG abnormality + 0
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