<unk>  <unk>  is a term used for a group of pregnancy-related tumours. These tumours are rare, and they appear when cells in the womb start to proliferate uncontrollably. The cells that form<unk><unk>  tumours are called trophoblasts and come from tissue that grows to form the placenta during pregnancy. There are several different types of<unk> . Hydatidiform moles are benign in most cases, but sometimes may develop into invasive moles, or, in rare cases, into choriocarcinoma, which is likely to spread quickly, but which is very sensitive to chemotherapy, and has a very good prognosis.<unk>  trophoblasts are of particular interest to cell biologists because, like cancer, these cells invade tissue (the uterus), but unlike cancer, they sometimes "know" when to stop.<unk>  can simulate pregnancy, because the uterus may contain fetal tissue, albeit abnormal. This tissue may grow at the same rate as a normal pregnancy, and produces chorionic gonadotropin, a hormone which is measured to monitor fetal well-being. While<unk>  overwhelmingly affects women of child-bearing age, it may rarely occur in postmenopausal women.
Gestational trophoblastic disease
Forced pregnancy
Toxic abortion
Postpartum infections
Early pregnancy bleeding
After-birth abortion
Molar pregnancy
Puppy pregnancy syndrome