Abstract
We report a clinical study of 152 patients with parotid tumor treated in our hospital between 1993 and 2002. We treated parotid tumors according to frozen section analysis. When a tumor was diagnosed as benign by frozen section histological analysis, partial lobectomy was performed. For low grade malignant tumors, lobectomy preserving the facial nerve was performed. When a tumor was diagnosed as a high grade malignant tumor, total parotidectomy was performed.
The rate of accurate determination of malignancy was 98.7%, and the rates of correct histological diagnosis of malignant or benign tumor were 97.5% and 73.0% respectively. In patients with malignat tumors, 5-year survival was 69%, and this result was consistent with previous reports.
Our findings suggested that frozen section diagnosis is useful for evaluation of parotid tumors.
