摘要目的 探讨侵袭性脑膜瘤的临床特点及手术治疗.方法 回顾性分析55例手术治疗的侵袭性脑膜瘤患者的临床资料.结果 与非侵袭性脑膜瘤相比,侵袭性脑膜瘤具有以下临床与影像学特点:(1)以局部结构侵蚀性症状为常见临床表现;(2)脑膜尾征更典型、更常见;(3)缺乏白环征或黑环征;(4)向静脉窦内生长;(5)不规则或扁平状更常见;(6)瘤周水肿更明显;(7)肿瘤钙化少见;(8)局部骨质的增生与破坏.Ⅰ级切除31例,Ⅱ级切除13例,Ⅲ～Ⅳ级切除11例,无严重手术并发症及死亡病例.结论 侵袭性脑膜瘤具有明显的临床特点,实施恰当的手术方案可获得良好的治疗效果.

abstractsObjective To explore the clinical features and surgical treatment of aggressive meningiomas ( AMs). Method The cilinical materials of 55 patients with AMs treated surgically were analyzed retrospectively. Results Compared with non - aggressive meningiomas, the clinical and imaging features of AMs included: (1) They were often manifested by the symptoms of invasion of local structures. (2) The dural tail sign was more frequent and typical. (3) The white or black ring - sign was often absent. (4) The tumor growed into cerebral venous sinus. (5 ) The tumor was frequently irregular or flat in shape. (6 ) The cerebral edema surrouding the tumor was more obvious. (7) The calcification of tumor was rare. (8 ) Hyperplasia and destruction of local skull bone were easy to be seen. Simpson Ⅰ resection was achieved in 31 cases, Ⅱ in 13, and Ⅲ～Ⅳ in 11. There was no severe complication and death after operation. Conclusions AMs have markable clinical features. Carrying out an appropriate operative strategy could get a good treatment effect.