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HUMAN PHENOTYPE - ANNOTATIONS

The Human Phenotype Ontology (HPO) is downloaded weekly from http://compbio.charite.de/hudson/job/hpo/lastStableBuild/artifact/ontology/release/hp.obo. The file downloaded is considered the "last stable build" available for the ontology. For more about the HPO, view their website at http://www.human-phenotype-ontology.org/.
Term:Oligohydramnios
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Accession:HP:0001562 term browser browse the term
Definition:Diminished amniotic fluid volume in pregnancy.
Comment:Oligohydramnios is the opposite of polyhydramnios. In normal pregnancy the amniotic fluid volume increases by about 10 ml/day until the 34th, after which it slowly diminishes. A normal amniotic fluid volume at term is about 500-2,000 ml. Oligohydramnios is defined as an AFI (amniotic fluid index) less than 5 cm or smallest vertical pocket of fluid less than 2 cm.
Synonyms:exact_synonym: Low levels of amniotic fluid;   Maternal oligohydramnios
 related_synonym: Decreased amniotic fluid index
 alt_id: HP:0004638
 xref: MESH:D016104;   SNOMEDCT_US:59566000;   UMLS:C0079924;   UMLS:C3550658


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  Human phenotype 0
    Phenotypic abnormality 0
      Abnormality of prenatal development or birth 0
        Abnormality of the amniotic fluid 0
          Oligohydramnios 0
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