临床上脑肿瘤周围水肿较为常见,过多的液体在脑肿瘤周围组织间隙积聚即细胞外液体量增多称为肿瘤源性脑水肿。其发生与肿瘤存在或生长有关,常沿脑白质内的神经纤维呈放射状(或指状)分布,通常被归类于血管源性脑水肿,并常致血脑屏障的异常[1]。本文对脑瘤周围水肿的发生机理、特 Clinical brain tumor around the edema is more common, too much liquid in the brain tumor tissue interstitial accumulation of extracellular fluid volume is called tumor-derived brain edema. Its occurrence and tumor presence or growth, often along the white matter nerve fibers radial (or finger) distribution, is usually classified as vasogenic brain edema, and often lead to abnormalities of the blood-brain barrier [1]. This article on the pathogenesis of edema around the brain tumor, especially