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Chorionic villi information


Chorionic villi
Details
Days24
Identifiers
MeSHD002824
Anatomical terminology
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Chorionic villi are villi that sprout from the chorion to provide maximal contact area with maternal blood.

They are an essential element in pregnancy from a histomorphologic perspective, and are, by definition, a product of conception. Branches of the umbilical arteries carry embryonic blood to the villi. After circulating through the capillaries of the villi, blood returns to the embryo through the umbilical vein. Thus, villi are part of the border between maternal and fetal blood during pregnancy.

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Chorionic villi

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Chorionic villi are villi that sprout from the chorion to provide maximal contact area with maternal blood. They are an essential element in pregnancy...

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Chorionic villus sampling

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patient does not develop infection. Recent studies have discovered that chorionic villi can be a rich source of fetal stem cells, multipotent mesenchymal stem...

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Chorion

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layers of trophoblast that surround the embryo and other membranes; the chorionic villi emerge from the chorion, invade the endometrium, and allow the transfer...

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Molar pregnancy

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pregnancy, the uterus contains a growing mass characterized by swollen chorionic villi, resembling clusters of grapes. The occurrence of a molar pregnancy...

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Syncytiotrophoblast

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Histopathology of a chorionic villus, in a tubal pregnancy Histopathology of placenta with increased syncytial knotting of chorionic villi, with two knots...

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Placenta accreta spectrum

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uterus: Accreta – chorionic villi attached to the myometrium, rather than being restricted within the decidua basalis. Increta – chorionic villi invaded into...

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Villitis of unknown etiology

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placental injury. VUE is an inflammatory condition involving the chorionic villi (placental villi). VUE is a recurrent condition and can be associated with intrauterine...

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Choriocarcinoma

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type villi. Since choriocarcinomas include syncytiotrophoblasts (beta-HCG producing cells), they cause elevated blood levels of beta-human chorionic gonadotropin...

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Chorionic vessels

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circulation. Chorionic arteries branch off the umbilical artery, and supply the capillaries of the chorionic villi. Increased vasocontractility of chorionic arteries...

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Cytotrophoblast

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into a villous cytotrophoblast, which is what constitutes primary chorionic villi, and will eventually coalesce into villous syncytiotrophoblast. The...

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Genetic testing

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about 1:400. Another method of prenatal testing is chorionic villus sampling (CVS). Chorionic villi are projections from the placenta that carry the same...

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Placental cotyledon

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placenta the chorionic villi form a number of separate circular structures (cotyledons) which are distributed over the surface of the chorionic sac. Sheep...

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Hofbauer cell

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Hofbauer cells have appeared with discernible amount of cytoplasm. Chorionic villi Venes, Donald (2006). Taber's cyclopedic medical dictionary (Ed. 20...

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Villus

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referred as intestinal villi. Chorionic villi, found on the surface of the outermost membrane (the chorion) of the fetus Arachnoid villi, located on the arachnoid...

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Ureaplasma parvum

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reproductive age. In addition, this pathogen may latently infect the chorionic villi tissues of pregnant women, thereby impacting pregnancy outcome. Ureaplasma...

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Massive perivillous fibrin deposition

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or MFD) refers to excessive deposition of fibrous tissue around the chorionic villi of the placenta. It causes reduced growth of the foetus, and leads...

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Placentation

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include: endotheliochorial placentation In this type of placentation, the chorionic villi are in contact with the endothelium of maternal blood vessels. (e.g...

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Placentitis

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placenta. The main forms of placentitis are: Villitis, inflammation of chorionic villi. Intervillositis, inflammation of the intervillous space. It may be...

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Fetal membranes

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connective tissue layer. The chorionic membrane is a fibrous tissue layer containing the fetal blood vessels. Chorionic villi form on the outer surface of...

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Bandicoot

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placenta is small compared to those of the Placentalia, and lacks chorionic villi. Bandicoots can reach 11 to 31 in (28 to 79 cm) in length, and 0.4...

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Intervillous space

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In the placenta, the intervillous space is the space between chorionic villi, and contains maternal blood. The trophoblast, which is a collection of cells...

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Placental villous immaturity

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intrauterine demise close to the normal gestational period. Immature chorionic villi are larger and have more central blood vessels; thus, the diffusion...

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Miscarriage

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of miscarriage. Immunohistochemical studies on decidual basalis and chorionic villi found that the imbalance of the immunological environment could be...

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Products of conception

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JC polyomavirus and Merkel cell polyomavirus have been detected in chorionic villi from females affected by spontaneous abortion as well as pregnant women...

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Cri du chat syndrome

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in the p arm of chromosome 5 can be detected from amniotic fluid or chorionic villi samples with BACs-on-Beads technology. G-banded karyotype of a carrier...

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Human chorionic gonadotropin

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Human chorionic gonadotropin (hCG) is a hormone for the maternal recognition of pregnancy produced by trophoblast cells that are surrounding a growing...

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Uterine gland

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thereby assist in providing fetal nutrition. Primary chorionic villi. Diagrammatic. Secondary chorionic villi. Diagrammatic. This article incorporates text in...

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Extravillous trophoblast

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trophoblast. EVTs that derive from CYT cells on the surface of placental chorionic villi that come into contact with the uterine wall - at the placental bed...

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Trisomy 16

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almost 3% of all DNA in cells. During pregnancy, women can be screened by chorionic villus sampling and amniocentesis to detect trisomy 16. With the advent...

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Antepartum bleeding

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on the depth of infiltration of the chorionic villi into the uterine wall: In placenta percreta, the chorionic villi have grow entirely through the myometrium...

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