| chorioangioma | <tumour> Benign tumour of placental blood vessels (haemangioma), usually of no clinical significance; large tumours may be associated with placental insufficiency and foetal hydrops; in some instances, the stroma is edematous and may resemble myxomatous tissue. See: chorioangiosis. Origin: chorion + angioma (05 Mar 2000) |
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| chorioangiomatosis | An abnormal increase in the number of vascular channels in placental villi; severe chorioangiosis is associated with a high incidence of neonatal death and major congenital malformations. Synonym: chorioangiomatosis. Origin: chorio-+ G. Angeion, vessel, + -osis, condition (05 Mar 2000) |
| placental chorioangioma | <radiology> Most common benign tumour of placenta, incidence: 0.7%, Differential diagnosis: hydatidaform mole, large leiomyoma, chorioepithelioma, complications: IUGR, foetal anomaly, polyhydramnios, haemorrhage, heart failure, premature labour (12 Dec 1998) |
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| chorioangioma |
an angiomatous tumor of the chorion.
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