Diagnostic values of pipelle and standard curettage compared to hysterectomy pathology in postmenopausal bleeding: A comparative study

Background: Postmenopausal bleeding might occur due to many benign and malignant underlying diseases. Differentiating between these diseases poses a great importance. This study was designed to compare the diagnostic value of pipelle endometrial sampling and curettage in patients with postmenopausal bleeding. Further, the results were compared with hysterectomy if performed. Materials and Methods: Eighty-seven patients with postmenopausal bleeding were included. Pipelle sampling endometrial biopsy was performed for patients in office, and then, patients were transferred to the operation room for dilatation and curettage. Pathology results of pipelle sampling were compared with curettage method. If hysterectomy was performed due to any reason, it was compared as well. Results: The pipelle sampling biopsy diagnosed 94.1% of malignant tumors, and curettage sampling biopsy diagnosed 100% of malignant tumors. The sensitivity and specificity of pipelle compared to curettage were 94.12% and 100%, respectively, for the diagnosis of malignant tumors. Based on the Kappa test, the agreement between pipelle and curettage sampling biopsy was statistically significant (P < 0.001). Conclusion: The endometrial sampling with pipelle is safe and cost-effective in patients referred with postmenopausal bleeding. This might avoid the need for general anesthesia for the detection of endometrial hyperplasia and endometrial malignancy.