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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 bowel dilatation
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Accession:HP:4000140 term browser browse the term
Definition:Fetal bowel dilatation is characterized by fluid-filled intestinal loops which measure at least fifteen millimeters long or seven millimeters in diameter. Ultrasonographic image of dilated fetal bowel is a sign of intestinal mechanical or functional obstruction and its prevalence will depend on the underlying condition: bowel atresia or stenosis, malrotation with volvulus, meconium ileus, total colonic aganglionosis, and meconium plug syndrome. The etiology of fetal bowel dilatation is a difficult prenatal diagnosis since ultrasound has limited accuracy for bowel evaluation.
Synonyms:exact_synonym: Foetal bowel dilatation;   Prenatal ultrasound: bowel loops dilated

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  Human phenotype 0
    Phenotypic abnormality 0
      Abnormality of prenatal development or birth 0
        Fetal anomaly 0
          Abnormal fetal morphology 0
            Abnormal fetal gastrointestinal system morphology 0
              Fetal bowel dilatation 0
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