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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:Amniotic Sheet
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Accession:HP:0030763 term browser browse the term
Definition:A sheet like projection that can result from uterine synechiae that has been encompassed by the expanding chorion and amnion.
Synonyms:exact_synonym: Amniotic shelf
 xref: UMLS:C4280779

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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 Sheet 0
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