Diagnostic Accuracy of Hysteroscopic Scoring System in Predicting Endometrial Malignancy and Atypical Endometrial Hyperplasia

AIMS AND OBJECTIVES: The aim of this study was to determine the diagnostic accuracy of a hysteroscopic scoring system in predicting endometrial cancer and endometrial hyperplasia with atypia. MATERIALS AND METHODS: This is a prospective study involving 95 peri and postmenopausal women with abnormal uterine bleeding who underwent hysteroscopic-guided endometrial biopsy. After the calculation of hysteroscopic score, biopsy was obtained and sent for histopathological examination. Hysteroscopic diagnosis of carcinoma endometrium was made when the total score was ≥16 and a score ≥7 supported a diagnosis of endometrial hyperplasia with atypia. RESULTS: Out of the 95 women, 46 (48.4%) women had postmenopausal bleeding. The mean age of women was 50.4 ± 10.3 years. Eight women were diagnosed to have endometrial cancer and eight had endometrial hyperplasia with atypia on histopathological examination. Using a hysteroscopy score ≥16, the sensitivity and specificity were found to be 62.5% and 90.8%, respectively, for diagnosing endometrial cancer. Hysteroscopy score ≥9 was found to be a better cutoff for diagnosing endometrial cancer using Youden index. The sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) for diagnosing endometrial cancer with score ≥9 was 100%, 67.8%, 22.2%, and 100%, respectively. The sensitivity, specificity, PPV, and NPV for diagnosing endometrial hyperplasia with atypia with score ≥7 was found to be 75%, 58.6%, 14.3%, and 96.2%, respectively. CONCLUSION: The hysteroscopic scoring system has a good diagnostic performance when a cutoff score ≥9 is used in predicting endometrial cancer. However, the scoring system has lower diagnostic accuracy in predicting endometrial hyperplasia with atypia.