Ovarian Cancer

The ovaries are a pair of organs in the female reproductive system. They are located in the pelvis, one on each side of the uterus (the hollow, pear-shaped organ where a fetus grows). Each ovary is about the size and shape of an almond. The ovaries produce eggs and female hormones (chemicals that control the way certain cells or organs function). Ovarian epithelial cancer is one type of cancer that affects the ovary. (Refer to the PDQ treatment summaries on Ovarian Germ Cell Tumors and Ovarian Low Malignant Potential Tumors for information about other types of ovarian cancer.) Women who have a family history of ovarian cancer are at an increased risk of developing ovarian cancer.
Ovarian cancer is hard to detect (find) early because usually there are no symptoms. Some women who have early stage ovarian cancer may have symptoms such as vague gastrointestinal (GI) discomfort, pressure in the pelvis, pain, swelling of the abdomen, and shortness of breath. Most of the time, there are no symptoms or they are very mild. By the time symptoms do appear, the cancer is usually advanced. When found in its early stages, ovarian epithelial cancer can be cured in many patients. Women with any stage of ovarian epithelial cancer should consider taking part in a clinical trial. Information about ongoing clinical trials is available from the NCI Web site. Tests that examine the ovaries, pelvic area, blood, and ovarian tissue are used to detect (find) and diagnose ovarian cancer. The following tests and procedures may be used: Pelvic exam: An exam of the vagina, cervix, uterus, fallopian tubes, ovaries, and rectum. The doctor or nurse inserts one or two lubricated, gloved fingers of one hand into the vagina and the other hand is placed over the lower abdomen to feel the size, shape, and position of the uterus and ovaries. A speculum is also inserted into the vagina and the doctor or nurse looks at the vagina and cervix for signs of disease. A Pap test or Pap smear of the cervix is usually done. The doctor or nurse also inserts a lubricated, gloved finger into the rectum to feel for lumps or abnormal areas. Ultrasound exam: A procedure in which high-energy sound waves (ultrasound) are bounced off internal tissues or organs and make echoes. The echoes form a picture of body tissues called a sonogram. CA 125 assay: A test that measures the level of CA 125 in the blood. CA 125 is a substance released by cells into the bloodstream. An increased CA 125 level is sometimes a sign of cancer or other condition. Barium enema: A series of x-rays of the lower gastrointestinal tract. A liquid that contains barium (a silver-white metallic compound) is put into the rectum. The barium coats the lower gastrointestinal tract and x-rays are taken. This procedure is also called a lower GI series. Intravenous pyelogram (IVP): A series of x-rays of the kidneys, ureters, and bladder to find out if cancer has spread to these organs. A contrast dye is injected into a vein. As the contrast dye moves through the kidneys, ureters, and bladder, x-rays are taken to see if there are any blockages. CT scan (CAT scan): A procedure that makes a series of detailed pictures of areas inside the body, taken from different angles. The pictures are made by a computer linked to an x-ray machine. A dye may be injected into a vein or swallowed to help the organs or tissues show up more clearly. This procedure is also called computed tomography, computerized tomography, or computerized axial tomography. Biopsy: The removal of cells or tissues so they can be viewed under a microscope by a pathologist to check for signs of cancer. The tissue is removed in a procedure called a laparotomy (a surgical incision made in the wall of the abdomen).


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