例1，男，45岁。4月前右上牙床麻木感，后出现右面部肿胀隆起，近半月来，用手按压右眼下缘有清液自右鼻腔流出，右鼻少量出血两次。检查：右中甲前端见黄白色坏死样组织，质中等，似有囊性感。互线片示右上颌窦密度增高、扩大，窦壁变薄。活检报告为右上颌窦恶性纤维组织细胞 Example 1, male, 45 years old. 4 months ago, the upper right gums numbness, swelling after the emergence of the right facial uplift, nearly half a month, hand pressing the lower right edge of the right eye clear liquid from the right nasal outflow, a small amount of bleeding in the right nasal twice. Check: see the right side of the front of the yellow-white necrosis-like tissue, medium quality, like a cystic sexy. Mutual line shows the right maxillary sinus increased density, expansion, sinus wall thinning. Biopsy report of right maxillary sinus malignant fibrous tissue cells