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Uterine Sarcoma Treatment (PDQ®): Treatment - Patient Information [NCI] - General Information About Uterine Sarcoma

Uterine sarcoma is a disease in which malignant (cancer) cells form in the muscles of the uterus or other tissues that support the uterus.

The uterus is part of the female reproductive system. The uterus is the hollow, pear-shaped organ in the pelvis, where a fetus grows. The cervix is at the lower, narrow end of the uterus, and leads to the vagina.
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Anatomy of the female reproductive system. The organs in the female reproductive system include the uterus, ovaries, fallopian tubes, cervix, and vagina. The uterus has a muscular outer layer called the myometrium and an inner lining called the endometrium.

Uterine sarcoma is a very rare kind of cancer that forms in the uterine muscles or in tissues that support the uterus. (Information about other types of sarcomas can be found in the PDQ summary on Adult Soft Tissue Sarcoma Treatment.) Uterine sarcoma is different from cancer of the endometrium, a disease in which cancer cells start growing inside the lining of the uterus. (See the PDQ summary on Endometrial Cancer Treatment for information).

Being exposed to x-rays can increase the risk of uterine sarcoma.

Anything that increases your risk of getting a disease is called a risk factor. Having a risk factor does not mean that you will get cancer; not having risk factors doesn't mean that you will not get cancer. Talk with your doctor if you think you may be at risk. Risk factors for uterine sarcoma include the following:

  • Past treatment with radiation therapy to the pelvis.
  • Treatment with tamoxifen for breast cancer. If you are taking this drug, have a pelvic exam every year and report any vaginal bleeding (other than menstrual bleeding) as soon as possible.

Possible signs of uterine sarcoma include abnormal bleeding.

Abnormal bleeding from the vagina and other symptoms may be caused by uterine sarcoma. Other conditions may cause the same symptoms. Check with your doctor if you have any of the following problems:

  • Bleeding that is not part of menstrual periods.
  • Bleeding after menopause.
  • A mass in the vagina.
  • Pain or a feeling of fullness in the abdomen.
  • Frequent urination.
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