cho·​rio·​an·​gi·​o·​ma -ˌan-jē-ˈō-mə How to pronounce chorioangioma (audio)
plural chorioangiomas also chorioangiomata -mət-ə How to pronounce chorioangioma (audio)
: a benign vascular tumor of the chorion
Chorioangiomas occur in up to 1 percent of pregnancies, but those associated with nonimmune fetal hydrops are usually more than 5 cm in diameter and should have been visible on prenatal ultrasonograms or in the placenta at delivery.Linda J. Heffner et al., The New England Journal of Medicine

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Cite this Entry

“Chorioangioma.” Medical Dictionary, Merriam-Webster, Accessed 29 Feb. 2024.

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