脑膜瘤又称蛛网膜内皮瘤,一般认为起源于蛛网膜绒毛,是常见的颅内肿瘤,约占颅内肿瘤的14.3～19%,居第二位。儿童发病率低。大多数脑膜瘤为良性肿瘤,病程长。恶性脑膜瘤约占6.2%。手术切除一直足治疗脑膜瘤的主要手段,而放射治疗在脑膜瘤治疗中的价值一直在争论。不少作者 Meningioma, also known as arachnoid endothelioma, is generally believed that originated in the arachnoid villi, is a common intracranial tumor, accounting for 14.3 to 19% of intracranial tumors, ranking second place. Low incidence of children. Most meningiomas are benign and have long duration. Malignant meningiomas account for about 6.2%. Surgical resection has been the mainstay of treatment of meningiomas, and the value of radiation therapy in the treatment of meningiomas has been debated. Many authors