an abnormality during pregnancy; chorionic villi around an aborting embryo degenerate and form clusters of fluid-filled sacs
a large malformation within the uterus, causing pregnancy symptoms, yet the embryo has died or is no longer present
an abnormality of the conceptus in which changes that began early in embryonic life convert the placental villi into a mass of thin-walled, grapelike, translucent vesicles, or blisters, filled with a gelatinous or watery fluid
a pregnancy in which the villi have become hydropic and trophoblastic elements have proliferated
a rare mass or growth that may form inside the uterus at the beginning of a pregnancy
a relatively rare condition in which tissue around a fertilized egg that normally would have developed into the placenta instead develops as an abnormal cluster of cells
A pathologic condition of pregnancy characterized by hydropic degeneration of the chorionic villi and variable degrees of trophoblastic proliferation.
An abnormality during pregnancy; a tissue mass or growth that forms within the uterus as the result of a genetic error during the fertilization process.
an abnormal development of the placenta.
(hy-da-TID-ih-form mohl) A condition in women of childbearing age in which grape-like cysts grow in the uterus after conception (fertilization of an egg by a sperm). Hydatidiform moles may change into a type of cancer called choriocarcinoma or gestational trophoblastic tumor. Also called molar pregnancy.
An abnormal pregnancy in which there is no fetus, only an abnormal mass growth.
An abnormal conceptus which consists of abnormal tissues: a complete mole contains no fetus but can undergo malignant change and receives both sets of chromosomes from the father; a partial mole contains a chromosomally abnormal fetus with triploidy.
A hydatidiform mole (or mola hydatidiforma) is a disease of trophoblastic proliferation. It can mimic pregnancy, causes high human chorionic gonadotropin (HCG) levels and therefore gives false positive readings of pregnancy tests.