目的探讨恶性脑膜瘤的临床特点和术前定性诊断。方法回顾性分析19例恶性脑膜瘤的临床表现和放射学检查结果。结果本组患者临床表现与良性脑膜瘤无明显区别,10例血管造影中有7例表现为血管排列紊乱、不规则。CT可见肿瘤内低密度区,或肿瘤呈分叶状。17例行肿瘤全切,2例行大部切除。本组1例手术死亡。结论脑膜瘤中肿瘤形状不规则、灶状坏死、缺乏钙化及血管造影中肿瘤血管不规则提示恶性脑膜瘤。 Objective To investigate the clinical features and preoperative diagnosis of malignant meningiomas. Methods Retrospective analysis of 19 cases of malignant meningioma clinical manifestations and radiological findings. Results The clinical manifestations of this group of patients with benign meningioma no significant difference, 10 cases of angiography in 7 cases showed vascular disorder, irregular. CT visible tumor within the low-density area, or tumor lobulated. 17 cases of total tumor resection, 2 cases were removed. One patient died of surgery in this group. Conclusion The tumor shape of meningioma is irregular, with focal necrosis, lack of calcification, and angiogenesis of tumor vessels irregularly suggesting malignant meningioma.