COMPARISON OF D-AND-C AND OFFICE ENDOMETRIAL BIOPSY IN PREDICTING FINAL HISTOPATHOLOGIC GRADE IN ENDOMETRIAL CANCER

Objective: To compare the accuracy of D & C and office Z-sampler endom etrial biopsy in predicting hysterectomy tumor grade in women with end ometrial cancer.Methods: between September 1987 and July 1994, 183 wom en with endometrial cancer had D & C or office Z-sampler endometrial b iopsy before hysterectomy. Results: One hundred thirty-one patients (7 2%) had Z-sampler biopsies and 52 (28%) had D & C. The Z-sampler corre ctly identified the hysterectomy tumor grade in 76 of 131 patients (58 %), compared with 40 of 52 (77%) with D & C, a significant difference (P = .024). The major difference observed was an increased fraction of lesions undergraded tie, a lower grade tumor found in the biopsy than in the hysterectomy specimen) by the Z-sampler (34 of 131, 26%) versu s D & C (five of 52, 10%). Conclusion: Dilation and curettage was more accurate in i identifying hysterectomy tumor grade and less likely to miss a higher-grade tumor than was Z-sampler biopsy. However, the ina ccuracy of D & C alone necessitates further preoperative and intraoper ative assessment for other risk factors to determine the aggressivenes s with which an individual patient should be staged surgically.