Ovarian Cancer

What it is:

Cancer that forms in tissues of the ovary (one of a pair of female reproductive glands in which the ova, or eggs, are formed). Most ovarian cancers are either ovarian epithelial carcinomas (cancer that begins in the cells on the surface of the ovary) or malignant germ cell tumors (cancer that begins in egg cells). 

How we find it:

If you have a symptom that suggests ovarian cancer, your doctor must find out whether it is due to cancer or to some other cause. Your doctor may ask about your personal and family medical history. 

You may have one or more of the following tests. Your doctor can explain more about each test:

  • Physical exam — Your doctor checks general signs of health. Your doctor may press on your abdomen to check for tumors or an abnormal buildup of fluid (ascites). A sample of fluid can be taken to look for ovarian cancer cells.
  • Pelvic exam — Your doctor feels the ovaries and nearby organs for lumps or other changes in their shape or size. A Pap test is part of a normal pelvic exam, but it is not used to collect ovarian cells. The Pap test detects cervical cancer. The Pap test is not used to diagnose ovarian cancer.
  • Blood tests — Your doctor may order blood tests. The lab may check the level of several substances, including CA-125. CA-125 is a substance found on the surface of ovarian cancer cells and on some normal tissues. A high CA-125 level could be a sign of cancer or other conditions. The CA-125 test is not used alone to diagnose ovarian cancer. This test is approved by the Food and Drug Administration for monitoring a woman's response to ovarian cancer treatment and for detecting its return after treatment.
  • Ultrasound — The ultrasound device uses sound waves that people cannot hear. The device aims sound waves at organs inside the pelvis. The waves bounce off the organs. A computer creates a picture from the echoes. The picture may show an ovarian tumor. For a better view of the ovaries, the device may be inserted into the vagina (transvaginal ultrasound).
  • Biopsy — A biopsy is the removal of tissue or fluid to look for cancer cells. Based on the results of the blood tests and ultrasound, your doctor may suggest surgery (a laparotomy) to remove tissue and fluid from the pelvis and abdomen. Surgery is usually needed to diagnose ovarian cancer.

Although most women have a laparotomy for diagnosis, some women have a procedure known as laparoscopy. The doctor inserts a thin, lighted tube (a laparoscope) through a small incision in the abdomen. Laparoscopy may be used to remove a small, benign cyst or an early ovarian cancer. It may also be used to learn whether cancer has spread.

A pathologist uses a microscope to look for cancer cells in the tissue or fluid. If ovarian cancer cells are found, the pathologist describes the grade of the cells. Grades 1, 2, and 3 describe how abnormal the cancer cells look. Grade 1 cancer cells are not as likely as to grow and spread as Grade 3 cells.

How we treat it:

Your doctor can describe your treatment choices and the expected results. Most women have surgery and chemotherapy. Rarely, radiation therapyis used.

Cancer treatment can affect cancer cells in the pelvis, in the abdomen, or throughout the body:

  • Local therapy — Surgery and radiation therapy are local therapies. They remove or destroy ovarian cancer in the pelvis. When ovarian cancer has spread to other parts of the body, local therapy may be used to control the disease in those specific areas.
  • Systemic chemotherapy — When chemotherapy is taken by mouth or injected into a vein, the drugs enter the bloodstream and destroy or control cancer throughout the body.

You may want to know how treatment may change your normal activities. You and your doctor can work together to develop a treatment plan that meets your medical and personal needs.

Because cancer treatments often damage healthy cells and tissues, side effects are common. Side effects depend mainly on the type and extent of the treatment. Side effects may not be the same for each woman, and they may change from one treatment session to the next. Before treatment starts, your health care team will explain possible side effects and suggest ways to help you manage them.

You may want to talk to your doctor about taking part in a clinical trial, a research study of new treatment methods. Clinical trialsare an important option for women with all stages of ovarian cancer. The section on "The Promise of Cancer Research" has more information about clinical trials.

Source:

National Cancer Institute