白血病系发生于造血系统的恶性肿瘤，中枢神经系统受侵是白血病晚期较常见的并发症，常常是导致死亡的主要原因，以往临床往往借助腰穿进行诊断。我院 １９９５－０５～１９９８－１２ＣＴ检查颅脑约４７９４余人次，其中颅内自发性出血４３７人，属白血病颅内出血５人，占１． Leukemia is a malignant tumor of the hematopoietic system. Invading the central nervous system is a more common complication of advanced leukemia. It is often the leading cause of death. In the past, the clinical diagnosis of lumbar puncture was often used. Our hospital from 1995-05 ~ 1998-12CT examination of craniocerebral about 4794 people, of which 437 were intracranial spontaneous bleeding, a leukemia intracranial hemorrhage in 5, accounting for 1.