chorionic villus


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chorionic villus

n.
Any of the minute fingerlike projections of the fetal chorion that contain fetal blood vessels and that combine with maternal uterine tissue to form the placenta.

cho′rion′ic vil′lus


n.
one of the branching outgrowths of the chorion that together with maternal tissue form the placenta.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.chorionic villus - one of the tiny villi that stick out of the fetal chorion and combine with the mother's uterine tissue to form the placenta
chorion - the outermost membranous sac enclosing the embryo in higher vertebrates (reptiles, birds and mammals)
villus - a minute hairlike projection on mucous membrane
References in periodicals archive ?
1% were opposed to intermarriages of carrier and 57% believed that if carrier got married then prenatal diagnosis or Chorionic villus sampling test is necessary.
Results: Two thousand one hundred eighty-five procedures were performed (1853 amniocenteses, 326 chorionic villus sampling, and 6 cordocenteses).
Just because we can perform a chorionic villus sampling, should we perform one?
Focal and mild intravascular karyorrhexis was present in some chorionic villus vessels, which we attributed to recently induced intrauterine fetal demise.
The improvised device (standard pistol grip) was mounted onto the syringe which was being used to aspirate chorionic villus samples or other large volume aspirations.
Current prenatal tests include amniocentesis and chorionic villus sampling, but they work later in pregnancy: at least 12 weeks for amnio and at least nine weeks for CVS.
A 2015 scientific study estimates that from 1974 to 2007, pregnancy terminations based on trisomy 21 diagnosis (made using amniocentesis or chorionic villus sampling) reduced the population of individuals living with Down syndrome in the United States by approximately 30%.
A small amount of chorionic villus tissue is then removed for analysis.
The two predominant prenatal tests are chorionic villus sampling (CVS) and amniocentesis, both are invasive and could possess harm to the developing fetus, in some cases it can cause miscarriage.
INTRODUCTION: Chorionic villus sampling (CVS) is the gold standard invasive procedure for first trimester prenatal diagnosis.
DNA was obtained from chorionic villus cells, amniotic cells or fetal skin fibroblasts without cell culture using the QIAamp DNA Mini Kit (Qiagen, Germany).
In contrast to invasive diagnostic tests like amniocentesis and chorionic villus sampling (CVS), that carry one to two per cent risk of causing miscarriages, Veracity does not pose any threat to the foetus, Anastassiades said.