Molar pregnancy or hydatidiform mole — is a benign tumor that occurs
in the uterus. It starts when an egg is fertilized, but instead
developing into a normal, conceptus + placental tissue, the placenta
tissue develops into a mass of small cysts. Here, the root system
(trophoblast) of the embryo which under normal conditions develops
into the placenta that connects the baby to the mother. With molar
pregnancy, the roots of the trophoblast (chorionic villi) un…