对侵犯颅内的鼻窦恶性肿瘤１０例，施行了根治性手术，用游离的阔筋膜和带蒂帽状腱膜颅骨膜重建被切除的颅底骨板和硬脑膜，颅底骨缺损直径达５～７ｃｍ也不需植骨，无１例并发脑脊液漏或出现脑、脑膜膨出，术后己健在４年者４例，２年后复发但仍带瘤生存４年余１例，另５例术后３个月至３年半局部复发或转移而死亡。 In 10 patients with intranasal malignant tumors of the sinuses, radical surgery was performed. The skull base plates and dura mater resected with free fascia lata and carapace aponeurosis were reconstructed. The diameter of skull base defect 5 ~ 7cm did not need bone graft, no cases of cerebrospinal fluid leakage or brain, meninges bulging, after 4 years of good health in 4 cases, 2 years after the recurrence, but still with tumor survival more than 4 years in 1 case, the other 5 Cases of 3 months to 3 years after the local recurrence or metastasis and death.