Many women who have symptoms of endometrial cancer (vaginal bleeding after menopause or abnormal menstrual bleeding) may have a biopsy that shows precancerous changes of the endometrium, called complex hyperplasia with atypia. Risk is high that 25 to 50 percent of these women will go on to develop endometrial cancer.

What percentage of endometrial thickness is cancer?

Results: In a postmenopausal woman with vaginal bleeding, the risk of cancer is approximately 7.3% if her endometrium is thick (> 5 mm) and < 0.07% if her endometrium is thin (< or = 5 mm).

Are most endometrial biopsies benign?

What do the results mean? An endometrial biopsy is normal when no abnormal cells or cancer is found. Results are considered abnormal when: a benign, or noncancerous, growth is present.

Does thickening of the lining of the uterus mean cancer?

When the endometrium, the lining of the uterus, becomes too thick, it is called endometrial hyperplasia. This condition is not cancer, but in some cases, it can lead to cancer of the uterus.

What does endometrial cancer look like in an ultrasound?

Ultrasound. Endometrial carcinoma usually appears as thickening of the endometrium though may appear as a polypoid mass. Sonographic features are non-specific and endometrial thickening can also be due to benign proliferation, endometrial hyperplasia, or polyps.