PRACTICA OTO-RHINO-LARYNGOLOGICA

Vol. 96   No.12   December　2003

Clinical Analysis of Parotid Tumor
                                               

Ryoji Ishida, Hiroyuki Yamada and Sin-ichiro Nishii
(Yamada Red Cross Hospital)

      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.

Key words : parotid tumor, frozen section analysis

第96巻12号　目次　  Vol.96 No.12 contents