The ovaries are small, almond-shaped organs located on either side of the uterus. Eggs are produced in the ovaries. Ovarian cancer can occur in several different parts of the ovary.
Ovarian cancer can start in the ovary’s germ, stromal, or epithelial cells. Germ cells are the cells that become eggs. Stromal cells make up the substance of the ovary. Epithelial cells are the outer layer of the ovary.