骑跨上矢状窦硬膜外血肿在临床上可归为一组特殊类型硬膜外血肿,其出血来源、病情发展、手术方式均与其它种类不同,术中出血凶猛、死亡率高。特别是顶部骑跨矢状窦硬膜外血肿,在血肿较小时,常规轴位扫描可见不到血肿,即 Riding over the sagittal sinus epidural hematoma clinically classified as a group of special types of epidural hematoma, the source of bleeding, disease progression, surgical methods are different with other types of intraoperative bleeding fierce, high mortality. Especially at the top of the sagittal sinus across the epidural hematoma, smaller hematoma, the conventional axial scan can not see the hematoma, that is