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Ovarian cancer is a disease in which cancer cells grow in the ovaries. The ovaries are a pair of organs in the female pelvis that produce eggs and female hormones.
Cancer occurs when cells in the body (in this case ovarian cells) divide without control or order. Normally, cells divide in a regulated manner. If cells keep dividing uncontrollably when new cells are not needed, a mass of tissue forms, called a growth or tumor. The term cancer refers to malignant tumors, which can invade nearby tissues and can spread to other parts of the body. A benign tumor does not spread.
There are several cancers and several more benign tumors that may occur in the ovaries. Most cancers are called epithelial cell tumors, whic