1 Cardiomyopathy and Women's health symptoms and Movement symptoms (12 causes) 2  Cardiomyopathy and Women's health symptoms and Muscle symptoms (12 causes) 3  Cardiomyopathy and Women's health symptoms and Nerve symptoms (12 causes)  Cardiomyopathy and Women's health symptoms and Heart symptoms (11 causes)
chorion. the outermost of the fetal membranes, composed of trophoblast lined with mesoderm; it develops villi, becomes vascularized by allantoic vessels, and forms the fetal part of the placenta. chorion frondosum. the part of the chorion covered by villi.
Topic Overview. A subchorionic hemorrhage is bleeding under one of the membranes (chorion) that surrounds the embryo. It is a common cause of bleeding in early pregnancy. It also may be called a subchorionic hematoma.The main symptom is vaginal bleeding.But some women don't have symptoms. subchorionic hemorrhage is bleeding under one of the membranes (chorion) that surrounds the embryo. It is a common cause of bleeding in early pregnancy. It also may be called a subchorionic hematoma.