脑膜瘤在有放疗史及行X线检查(低至1~2 Gy)的患者中发病率增高。[7]Harrison MJ, Wolfe DE, Lau TS, et al. Radiation-induced meningiomas: experience at the Mount Sinai Hospital and review of the literature. J Neurosurg. 1991;75:564-574.http://www.ncbi.nlm.nih.gov/pubmed/1885974?tool=bestpractice.com[8]Mack EE, Wilson CB. Meningiomas induced by high-dose cranial irradiation. J Neurosurg. 1993;79:28-31.http://www.ncbi.nlm.nih.gov/pubmed/8315464?tool=bestpractice.com[9]Shintani T, Hayakawa N, Hoshi M, et al. High incidence of meningioma among Hiroshima atomic bomb survivors. J Radiat Res (Tokyo). 1999;40:49-57.https://www.jstage.jst.go.jp/article/jrr/40/1/40_1_49/_pdfhttp://www.ncbi.nlm.nih.gov/pubmed/10408177?tool=bestpractice.com研究显示自放疗至发生脑膜瘤的中位时间为19年。[10]Paulino AC, Ahmed IM, Mai WY, et al. The influence of pretreatment characteristics and radiotherapy parameters on time interval to development of radiation-associated meningioma. Int J Radiat Oncol Biol Phys. 2009;75:1408-1414.http://www.ncbi.nlm.nih.gov/pubmed/19394163?tool=bestpractice.com即使缺乏证据,但是脑外伤也可能与脑膜瘤相关。[11]Ragel BT, Jensen RL, Couldwell WT. Inflammatory response and meningioma tumorigenesis and the effect of cyclooxygenase-2 inhibitors. Neurosurg Focus. 2007;23:E7.http://thejns.org/doi/full/10.3171/FOC-07/10/E7http://www.ncbi.nlm.nih.gov/pubmed/17961044?tool=bestpractice.com[12]Ragel BT, Jensen RL, Gillespie DL, et al. Celecoxib inhibits meningioma tumor growth in a mouse xenograft model. Cancer. 2007;109:588-597.http://onlinelibrary.wiley.com/doi/10.1002/cncr.22441/fullhttp://www.ncbi.nlm.nih.gov/pubmed/17177201?tool=bestpractice.com