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唾液腺肿瘤约占头颈部肿瘤的5％,其中80％原发于腮腺。文章对1977～1996年收治腮腺肿瘤633例进行了分析。1986年前10年为211例(年平均21例),1987年后10年为422例(年平均42例),病例数增加1倍,全组男303例(47.9％),女330例(52.1％),女性稍多。年龄50多岁最多139例(22.0％),其次60多岁125例(19.7％),40多岁110例(17.4％)。633例中,良性539例(85.2％),其中多形性腺瘤291例(54％),占全组的46.0％。年龄分布20～70岁,40～50岁最为多见,女性是男性的1倍。其次表皮样瘤121例,占良性的22.4％,男性多见(78.5％),年龄50～70多岁。恶性
Salivary gland tumors account for about 5% of head and neck cancer, of which 80% of primary parotid gland. The article analyzed 633 parotid tumors from 1977 to 1996. In the first 10 years of 1986, there were 211 cases (average 21 cases per year). In the 10 years after 1987, there were 422 cases (average 42 cases per year) and the number of cases doubled. There were 303 males (47.9%) and 330 females 52.1%), slightly more women. The patients were over 139 years old (22.0%) in their 50s, followed by 125 cases (19.7%) in their 60s and 110 cases (17.4%) in their 40s. Of 633 cases, 539 (85.2%) were benign, including 291 (54%) pleomorphic adenomas, accounting for 46.0% of the total. The age distribution of 20 to 70 years old, 40 to 50 years of age the most common, women are 1 times the men. Second, 121 cases of epidermoid tumors, accounting for 22.4% of benign, more common in men (78.5%), aged 50 to 70 years. Vicious