The accuracy of frozen section diagnosis was analyzed in a review of 132 parotid lesions. Of 107 benign lesions, 93% were correctly diagnosed on frozen section analysis, but of 25 malignant lesions, only 9 frozen sections were accurately interpreted. This study points out the difficulty encountered in using the frozen section technique when dealing with malignant parotid lesions and the importance of the surgeon's active participation in the analysis.
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