Endometrial Cancer Most Common, Least Talked About Gynecologic Cancer

January 21, 2010
W. Edward Richards, MD

(PhysOrg.com) -- One of the most common cancers affecting women in the United States has a precancerous state and obvious warning signs, yet almost 8,000 women die from the disease annually.

That form of —endometrial, also known as uterine cancer—occurs in the inner lining of the uterus and gives a clear warning sign: irregular vaginal bleeding. The challenge, says W. Edward Richards, MD, is that symptoms often occur in on the verge of menopause, leading many to mistakenly attribute the irregular bleeding to natural physiological changes.

“If you look at all the cancers women are diagnosed with—breast, lung, liver, everything—endometrial cancer represents 6 percent of cases diagnosed and it’s the most common cancer of the reproductive tract,” says Richards, a gynecologic oncologist with UC Health University of Cincinnati Physicians and director of women’s cancer at the UC Barrett Cancer Institute at University Hospital.

“Endometrial cancers occur most often in women older than 50 and, unfortunately, many women put off seeing a doctor because they think they are going through ‘the change,’” he adds.

Richards stresses that any irregular bleeding should be addressed by a physician regardless of the patient’s age. Women who are in the premenopausal age range—particularly those with risk factors such as obesity, diabetes, hypertension or excessive estrogen usage without the use of progesterone (known as “unopposed estrogen usage”)—should be aware of their risk for uterine cancer.

Most endometrial cancers are thought to be caused by a that can occur over an extended period time. In addition to obesity, diabetes, hypertension or unopposed estrogen usage, women with polycystic ovary syndrome and those over age 50 who have never been pregnant are also considered at higher risk to develop endometrial cancer.

“The good news is that surgery is often curative when endometrial cancer is caught early,” says Richards.

Surgery involves removing the uterus, cervix and ovaries as well as the surrounding lymph nodes to confirm that the disease has not spread beyond the reproductive system. More aggressive forms of endometrial cancer can often be effectively managed with adjuvant chemotherapy and/or radiation therapy.

“Routine pap tests rarely detect endometrial cancer, so it’s extremely important that unexplained bleeding—no matter what a woman’s age or life circumstances—be checked out,” adds Richards. “This disease is not exclusive to women of ‘a certain age’ and the symptoms should not be ignored.”

The most accurate way to diagnose endometrial cancer is with a biopsy, which can be done on an outpatient basis by inserting a small tool through the cervix into the uterus to extract a tissue sample.

“Certain types of precancerous lesions may also need to be evaluated by a gynecologic oncologist,” adds Richards, “because in those specific cases an underlying malignancy exists about 48 percent of the time.”

According to the American Cancer Society, more than 42,000 women are diagnosed with endometrial cancer annually and the chance of a woman having this cancer during her lifetime is about one in 40.

Explore further: Frequent alcohol consumption increases cancer risk in older women

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