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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:Digital constriction ring
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Accession:HP:0010491 term browser browse the term
Definition:A narrow segment of significantly reduced circumference of a digit.
Comment:The description should specify the hand and digit that is affected and the approximate location of the band relative to the phalanges. It may be described as partial, if it does not involve the entire circumference of the digit.
Synonyms:exact_synonym: Amniotic constriction rings of digits
 xref: UMLS:C4021261

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  Human phenotype 0
    Phenotypic abnormality 0
      Abnormality of prenatal development or birth 0
        Abnormalities of placenta or umbilical cord 0
          Abnormal placental membrane morphology 0
            Amniotic constriction ring 0
              Digital constriction ring 0
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