脑动脉瘤之发生有人认为系脑动脉分叉部的动脉中层(肌肉层)缺如之故,加之分叉部又正值血流改变方向处,流势湍急,所受压力较大,故容易形成动脉瘤,脑膜动脉虽也是中膜缺如,但其系颈外动脉分支,因解剖学关系,临床上脑膜中动脉之动脉瘤极为少见。国内外文献尚未见报导。我院于1963年曾手术治愈一例左侧脑膜中动脉动脉瘤,现报告如下: 患者舍××,男,27岁,蒙族,干部。住院号11557。于10年前左侧额顶部发现一如蚕豆大的肿物,质硬、不移动,生长缓慢,近二年来整个头部呈阵发性胀痛,尤以左颞部与眼眶 Some people think that the occurrence of cerebral aneurysm Department of cerebral artery bifurcation of the middle artery (muscle layer) is missing, coupled with the bifurcation of the blood flow at the same time, the direction of the rapid turmoil, subject to greater pressure, it is easy The formation of aneurysm, although the meningeal artery is also a lack of the media, but the external branches of the external carotid artery, due to anatomy, clinical meningeal artery aneurysm is extremely rare. Domestic and foreign literature has not been reported. Our hospital in 1963 had surgery to cure a case of left meningeal artery aneurysm, are as follows: The patient homes × ×, male, 27 years old, Mongolian, cadres. Hospital number 11557. Ten years ago, at the top of the left side of the amount found as broad beans, hard, not moving, slow growth, the past two years the entire head was paroxysmal pain, especially in the left temporal and orbital