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Germ Cell Ovarian Cancer Library

Learn about Germ Cell Ovarian Cancer

Ovarian germ cell tumor is a disease in which malignant (cancer) cells form in the germ (egg) cells of the ovary.

Germ cell tumors begin in the reproductive cells (egg or sperm) of the body. Ovarian germ cell tumors usually occur in teenage girls or young women and most often affect just one ovary.

The ovaries are a pair of organs in the female reproductive system. They are 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 make eggs and female hormones.

Ovarian germ cell tumor is a general name that is used to describe several different types of cancer. The most common ovarian germ cell tumor is called dysgerminoma. See the following PDQ summaries for information about other types of ovarian tumors:

Possible signs of ovarian germ cell tumor are swelling of the abdomen or vaginal bleeding after menopause.

Ovarian germ cell tumors can be hard to diagnose (find) early. Often there are no symptoms in the early stages, but tumors may be found during regular gynecologic exams (checkups). Check with your doctor if you have either of the following symptoms:

  • Swollen abdomen without weight gain in other parts of the body.
  • Bleeding from the vagina after menopause (when you are no longer having menstrual periods).

Tests that examine the ovaries, pelvic area, blood, and ovarian tissue are used to detect (find) and diagnose ovarian germ cell tumor.

The following tests and procedures may be used:

  • Physical exam and history: An exam of the body to check general signs of health, including checking for signs of disease, such as lumps or anything else that seems unusual. A history of the patient’s health habits and past illnesses and treatments will also be taken.
  • 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.
  • Laparotomy: A surgical procedure in which an incision (cut) is made in the wall of the abdomen to check the inside of the abdomen for signs of disease. The size of the incision depends on the reason the laparotomy is being done. Sometimes organs are removed or tissue samples are taken and checked under a microscope for signs of disease.
  • 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.
  • Serum tumor marker test: A procedure in which a sample of blood is checked to measure the amounts of certain substances released into the blood by organs, tissues, or tumor cells in the body. Certain substances are linked to specific types of cancer when found in increased levels in the blood. These are called tumor markers. An increased level of alpha fetoprotein (AFP) or human chorionic gonadotropin (HCG) in the blood may be a sign of ovarian germ cell tumor.

Certain factors affect prognosis (chance of recovery and treatment options).

The prognosis (chance of recovery) and treatment options depend on the following:

  • The type of cancer.
  • The size of the tumor.
  • The stage of cancer (whether it affects part of the ovary, involves the whole ovary, or has spread to other places in the body).
  • The way the cancer cells look under a microscope.
  • The patient’s general health.

Ovarian germ cell tumors are usually cured if found and treated early.

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