The Accuracy of Frozen Section in the Diagnosis of Malignant Adnexal Masses

Objective: To measure the accuracy of the frozen section in the diagnosis of malignant adnexal masses. Methods: 192 patients who had been operated due to adnexal masses and submitted for intraoperative frozen section were evaluated retrospectively. The results were compared with paraffin section. Results: In all cases, opinion on frozen section was avail­able. The sensitivity of frozen section through benign, borderline and malignant tumors were 98.8%, 90% and 93.8% respectively, where as the specificity of the latter tumors were 92.3%, 98.9% and 100% respectively. The overall accuracy was 97.9%. Two benign cases were di­agnosed as borderline, one borderline as benign and one malignant case as a benign in frozen section. The misdi­agnosed malignant case was mucinous and the others were serous type tumors. Conclusion: Frozen section has high accuracy in the di­agnosis of malignant ovarian tumors. Paraffin section is the gold standard method, but because of the need for the quick result in the operation for the surgical manage­ment, frozen section must be performed to all suspicious adnexal masses