Atypical Endometrial Hyperplasia
A 50-year-old woman with two children and no wish for further pregnancy reports 8 months of prolonged heavy menstrual bleeding. Her body mass index is 36 kg/m² and she has no cardiorespiratory disease. Pelvic ultrasound shows an endometrial thickness of 20 mm, and endometrial biopsy reports endometrial hyperplasia with atypia. Which of the following is the most appropriate management?
- A.Total hysterectomy with bilateral salpingo-oophorectomyCorrect
- B.Cyclical oral progesterone for 6 months
- C.Pelvic external beam radiotherapy
- D.Platinum-based combination chemotherapy
Explanation
Atypical endometrial hyperplasia, also called endometrial intraepithelial neoplasia, is a premalignant lesion. Up to 30 to 50 percent of women have a concurrent endometrial carcinoma already present at hysterectomy despite a biopsy showing only hyperplasia, because sampling error is common, and the long-term risk of progression to carcinoma is high. In a woman who has completed childbearing, total hysterectomy is therefore the definitive treatment; it removes the at-risk tissue, provides complete histological staging of any occult cancer and eliminates the need for repeated surveillance biopsies. In a postmenopausal or perimenopausal woman, bilateral salpingo-oophorectomy is usually performed at the same time to remove the ovarian source of estrogen and address the risk of concurrent adnexal pathology. Progestin therapy, ideally with a levonorgestrel intrauterine system, is reserved for women who wish to preserve fertility or are unfit for surgery, and it demands strict 3-monthly biopsy surveillance because relapse and progression are frequent. Radiotherapy and chemotherapy treat invasive endometrial carcinoma, not a premalignant lesion, and would expose her to toxicity without benefit. Obesity is the key modifiable driver through peripheral estrogen production and should be addressed regardless of treatment.
Why each option
- A.
- Correct. Atypical hyperplasia is premalignant with a high rate of concurrent carcinoma, so hysterectomy is definitive in a woman who has completed childbearing.
- B.
- Progestins are the fertility-sparing or surgically unfit alternative and require intensive biopsy surveillance; they are second best when hysterectomy is feasible.
- C.
- Radiotherapy has a role in invasive endometrial cancer, usually as adjuvant treatment, and is not used for a premalignant lesion.
- D.
- Chemotherapy is reserved for advanced or metastatic endometrial carcinoma and offers no benefit in atypical hyperplasia.
Reference: RCOG and BSGE Green-top Guideline No. 67, Management of Endometrial Hyperplasia, reaffirmed 2023
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