Chorioangioma, placental

Chorioangioma, placental: A benign vascular (blood vessel) tumor of the placenta (afterbirth). Large chorioangiomas cause complications including polyhydramnios (excess amniotic fluid), maternal and fetal clotting problems (coagulopathies), premature delivery, toxemia, fetal heart failure, and hydrops (excess fluid) affecting the fetus. Chorioangiomas probably act as peripheral shunts between arteries and veins (arteriovenous shunts) leading to progressive heart failure of the fetus. Labor is usually induced once the fetus is viable. Fetal blood transfusion has also been used in fetuses found to be anemic. Alcohol injection into the placental chorioangioma is being tried as a new method of treatment.

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Placental chorioangioma — A benign vascular (blood vessel) tumor of the placenta (afterbirth). Large chorioangiomas cause complications including excess amniotic fluid (polyhydramnios), maternal and fetal clotting problems (coagulopathies), premature delivery, toxemia,… … Medical dictionary
chorioangioma — Benign tumor of placental blood vessel s (hemangioma), usually of no clinical significance; large tumors may be associated with placental insufficiency and fetal hydrops; in some instances, the stroma is edem … Medical dictionary
Polyhydramnios — (polyhydramnion, hydramnios) is a medical condition describing an excess of amniotic fluid in the amniotic sac. It is seen in 0.5 to 2% of pregnancies.Fact|date=November 2007 It is typically diagnosed when the amniotic fluid exceeds 2000… … Wikipedia

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