Abstract

Ninety two cases of salivary gland tumors surgically treated since January, 1979 to December, 1984 in our clinic are reported. They were composed of 66 cases of benign tumors and 26 cases of malignant tumors. Salivary gland malignancies constituted about 3 % of all head and neck malignancies. Salivary gland tumors were composed of 57 parotid gland tumors, 19 submandibular gland tumors and 16 minor salivary gland tumors and incidence malignant tumors in each region were 19%, 42% and 44%. Later two regions were found significantly different from parotid gland. Pleomorphic adenomas were the common of all tumors, which comprised 81% of benign salivary gland tumors. Adenoid cystic carcinomas and adenocarcinomas were most frequently encountered malignancies; the former in submandibular gland and minor salivary gland, and the latter in parotid gland. Malignant tumors were significantly more common in men than women. It was characteristic of patients with malignant tumor, as compared with patients with benign tumor, that average age at first examination was about 60 year-old, that interval from onset was short, and that facial palsy, pain and adhesion were observed.

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