上颌窦涎腺混合瘤恶变为鳞癌１例报告山东聊城地区医院口腔科张军生涎腺混合瘤以发生于大涎腺居多，发生于颌骨或上颌窦的很少见，上颌窦内混合瘤恶变成为鳞癌者极少，临床尚无报道。我科曾收治１例，现报告如下：患者周××，男性，５３岁。１９９３年１１月４日住院，住... Maxillary sinus salivary gland malignant tumor into a squamous cell carcinoma report Liaocheng District Hospital of Stomatology, Zhang Jusheng salivary gland mixed tumor to occur in the majority of salivary glands, occurred in the maxillary or maxillary sinus is very rare, maxillary sinus mixed malignant tumor Very few become squamous cell carcinoma, there is no clinical report. My department had admitted a case, the report is as follows now: Patient × ×, male, 53 years old. November 4, 1993 hospitalization, live ...