多形性腺瘤在涎腺肿瘤中比较常见,其复发率较高,并且具有癌变的潜在危险。有几项研究提示,肿瘤复发在某些方面与治疗方法和病理类型有密切关系。在这些研究中,惟Howard等考虑了年龄与复发的关系。他们复习了1904～1947年间的世界文献,发现年龄不足13岁的患儿有30例,后来有7例(23%)术后复发。最近的两项研究表明,术后肿瘤复发与未复发的患者相比,其平均就诊年龄显著减小。作者复习了1974～1983年10间Canniesburn医院整形与口腔外科收治的全部多形性腺瘤患者的病史记录,并由一位病理专家重阅组织切片。按照肿瘤的组 The pleomorphic adenomas are more common in parotid gland tumors, and their recurrence rate is higher, and they have the potential risk of canceration. Several studies have suggested that tumor recurrence is in some ways closely related to treatment methods and pathological types. In these studies, Howard et al. considered the relationship between age and relapse. They reviewed the world literature from 1904 to 1947 and found that 30 patients were younger than 13 years old, and 7 patients (23%) later recurred. Two recent studies have shown that the average age of visits is significantly reduced in patients with recurrence after surgery compared with patients without recurrence. The author reviewed the medical records of all pleomorphic adenomas admitted to the Department of Orthopedics and Oral Surgery at 10 Canniesburn Hospital from 1974 to 1983, and was reviewed by a pathologist. According to the group of tumors