鼻腔及鼻窦恶性肿瘤较为少见,据统计约占全身恶性肿瘤的0.5%,在头颈恶性肿瘤中<3%,在日本约占头颈部癌的23%,美国年发病率为0.5～1/100000,常发生于50～60岁老年人,男女比例约为2:1。1病因目前有关鼻腔及鼻窦恶性肿瘤的病因还不十分明确,吸烟,长期暴露于木屑、工业粉尘、重金属(如镍、铬等)、石棉以及 Nasal and nasal malignancies are rare, accounting for about 0.5% of systemic malignancies, <3% of head and neck malignancies, about 23% of head and neck cancers in Japan, and an annualized incidence of 0.5 to 1 / 100,000 in the United States , Often occurs in 50 to 60-year-olds, the ratio of male to female is about 2: 1.1 Etiology At present, the cause of nasal and sinus malignant tumors is not yet clear, smoking, long-term exposure to sawdust, industrial dust, heavy metals such as nickel, Chrome, etc.), asbestos as well