invasive mole

Definition of invasive hydatidiform mole
National Cancer Institute

invasive hydatidiform mole

(in-VAY-siv HY-duh-TIH-dih-form …)
A type of cancer that grows into the muscular wall of the uterus. It is formed after conception (fertilization of an egg by a sperm). It may spread to other parts of the body, such as the vagina, vulva, and lung. Also called chorioadenoma destruens.

Source: NCI Dictionary of Cancer Terms