粘液表皮样癌多发生于涎腺,发生于上颌窦者罕见,我们收治1例,现报告如下。患者女,58岁。诉左鼻腔进行性堵塞、间歇性鼻衄6年。两年前曾经外院诊断为左鼻腔息肉、慢性上颌窦炎,并行鼻息肉摘除术及上颌窦根治术治疗。于1986年2月26日收住本院。检查:左中鼻道见一肿物,约蚕豆大,呈淡红色、质硬。X线副鼻窦瓦氏位片提示,左鼻腔左上颌窦密度增高。病理报告:鼻腔 Mucoepidermoid carcinoma occurs in the salivary glands, occurred in the maxillary sinus were rare, we admitted to a case, are as follows. Female patient, 58 years old. V. Left nasal congestion block, intermittent epistaxis 6 years. Two years ago, the hospital was diagnosed as left nasal polyps, chronic maxillary sinusitis, concurrent nasal polyps and maxillary sinus surgery. February 26, 1986 admitted to the hospital. Check: see a middle left nasal obstruction, about broad beans, pale red, hard. X-ray paranasal Valsalva shows that left nasal left maxillary sinus increased density. Pathology report: nasal cavity