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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:Placental mesenchymal dysplasia
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Accession:HP:0032165 term browser browse the term
Definition:Placental mesenchymal dysplasia is a rare anomaly characterized by placentomegaly, dilatation of chorionic vessels and hydropic stem villi with cistern-like formation. It is often clinically mistaken for a partial hydatidiform mole but there is no trophoblastic proliferation. P57 immunohistochemical expression is discordant, showing a normal positive expression in the cytotrophoblastic cells, and loss of expression in the stromal cells.
Comment:Placental mesenchymal dysplasia is an unusual abnormality of the stem villi of the placenta that may be mistaken for a hydatidiform mole, and in particular, partial mole, owing to the mixture of cysts and normal-appearing parenchyma.


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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 placenta morphology 0
            Placental mesenchymal dysplasia 0
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