患者,女,29岁。因左侧鼻塞伴同侧面颊肿胀一年,于1990年11月2日入院。检查;左面颊部隆起,无压痛,左鼻腔外侧壁向内侧移位,同侧齿龈及硬腭无异常。CT扫描示:左侧上颌窦窦腔呈实质性病变。前壁及内侧壁骨质吸收破坏,瘤体侵入面颊软组织,拟诊为上颌窦癌。于11月6日于静脉复合麻醉下行左鼻侧切开、上颌窦肿瘤切除术。术中发现上颌窦前壁骨质破坏,约1.5cm×1.3cm。肿瘤从破损处脱出,淡红色,质硬,无包膜,表面呈绒毛样。冰冻快 Patient, female, 29 years old. Due to left nasal congestion with ipsilateral cheek swelling for one year, on November 2, 1990 admission. Check; left cheek Ministry bulge, no tenderness, left lateral wall of the nasal cavity shift to the inside, ipsilateral gums and palate no abnormalities. CT scan showed: the left sinus cavity was a substantial lesion. Absorption of bone destruction of the anterior wall and the medial wall, tumor invasion of cheek soft tissue, to be diagnosed as maxillary sinus cancer. On November 6 in the intravenous anesthesia underwent left nasal incision, maxillary sinus resection. Surgery was found in the anterior wall of maxillary sinus bone destruction, about 1.5cm × 1.3cm. The tumor prolapsed from the damaged area, pale red, hard, non-enveloped, the surface was villous. Frozen fast