Chorionic bump is a rare condition in the first trimester of pregnancy. It appears as a bulge from the choriodecidual surface into the gestational sac. So far, there have been no ultrasound or ...

The fetal membranes consist of the chorion, amnion, yolk sac, and allantois. The chorion has three layers: cytotrophoblastic, chorionic connective tissue, and basement membrane. The chorion lies ...

However, a gestational sac can be identified on transvaginal ... on the evacuated uterine contents to look for the presence of chorionic villi. If chorionic villi are identified, the diagnosis ...