Hysteroscopy for asymptomatic postmenopausal women with sonographically thickened endometrium

Abstract Endometrial carcinoma is the most common genital cancer in women. While patients usually present with vaginal bleeding, in 10–20% this characteristic symptom is absent. Endometrial thickness (double layer) is measured by transvaginal sonography and thickening indicates an increased risk of malignancy or other pathology (hyperplasia or polyps). Objective : We sought to correlate hysteroscopic and pathological findings in asymptomatic postmenopausal women with sonographically thickened endometrium (>6 mm). Study design : A prospective observational study in a university hospital of 304 postmenopausal women referred between 1996 and 2006 because of a sonographically thickened endometrium in the absence of abnormal bleeding, who underwent continuous flow hysteroscopy (4.5 mm Storz hysteroscope) and fractionated curettage of the uterine cervix and corpus (D & C) in addition to vaginal sonography (5 MHz probe). Results : The mean age of the women was 64.8 (range 57.7–71.9) years. Average endometrial thickness measured by ultrasound was 12 mm ± 6.7 mm. Hysteroscopy suggested the presence of endometrial polyps in 226 women (74.3%), simple endometrial hyperplasia in 34 (11.2%), atrophic endometrium in 18 (5.9%), complex endometrial hyperplasia in 2 (0.7%), atypical hyperplasia in 3 (1%) and leiomyoma in 9 (3.0%). In 12 women (3.9%), the hysteroscopic appearance suggested malignancy and histology revealed endometrial adenocarcinoma. All hysteroscopic results were confirmed by histological examination. Conclusion : Hysteroscopy represents an easy, safe and effective method for the investigation of asymptomatic women with a thickened endometrium found with transvaginal ultrasound. The commonest pathology was endometrial polyps.