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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:Fetal abdominal cyst
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Accession:HP:4000139 term browser browse the term
Definition:Fetal abdominal cysts are usually detected during the second trimester anomaly scan or discovered incidentally at later gestations. However, a definitive diagnosis is often not made until postnatal life. The most common etiologies of fetal abdominal cysts are: ovarian, gastrointestinal cystic duplication, liver and choledochal, meconium pseudocysts, mesenteric and adrenal. Following identification of a cyst, careful morphological assessment allows the prediction of their natural history and importantly, the likelihood of surgical intervention being required postnatally.
Comment:Fetal ultrasound cannot always distinguish the origin of a cystic lesion in the abdominal region.
Synonyms:exact_synonym: Fetal cystic abdominal mass;   Foetal abdominal cyst;   Foetal cystic abdominal mass

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  Human phenotype 21508
    Phenotypic abnormality 21499
      Abnormality of prenatal development or birth 1109
        Fetal anomaly 653
          Abnormal fetal morphology 344
            Abnormal fetal gastrointestinal system morphology 20
              Fetal abdominal cyst 0
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