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.
Chorionic hematoma (also chorionic hemorrhage) is the pooling of blood (hematoma) between the chorion, a membrane surrounding the embryo, and the uterine wall.horionic hematomas can be caused by the separation of the chorion from the endometrium (inner membrane of the uterus). Hematomas are classified by their location between tissue layers: 1  Subchorionic hematomas, the most common type, are between the chorion and endometrium.