Knowledge on the nature of the endometrium in women without symptoms of endometrial disease is poor. Therefore, the aim of this prospective study was to describe the endometrium of a cohort of asymptomatic women. The entire endometrium of premenopausal and postmenopausal women was embedded for histologic examination. All included patients underwent a hysterectomy on indication of uterovaginal prolapse, from July 2011 to October 2012, in 3 hospitals in the South of the Netherlands. Exclusion criteria were symptoms of postmenopausal vaginal blood loss or premenopausal disordered vaginal bleeding. As a result, 68 women were included in the study, 48 women were postmenopausal and 20 were premenopausal. In the endometrium of 10 women, simple hyperplasia was found (15%); 1, complex hyperplasia (2%); 2, simple atypical hyperplasia (3%); 2, complex atypical hyperplasia (3%); and 2, a small focus of intramucosal endometrioid endometrial carcinoma (3%). In general, the endometrium was heterogeneous, and most lesions were not present in the entire endometrium. In conclusion, after examining the entire endometrium, a remarkable high prevalence of endometrial pathology was found in asymptomatic women. The clinical meaning of these lesions is not yet clear, but endometrial pathology may frequently exist without symptoms.
Keywords: Atypical hyperplasia; Endometrial neoplasia; Endometrium; Histopathology; Hysterectomy; Uterine prolapse.
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