central nervous system leukemia

例句：

1. 1.Central nervous system leukemia is arare but serious form of cancer that affectsthe brain and spinal cord.
   中枢神经系统白血病是一种罕见的但严重的癌症形式，影响大脑和脊髓。
2. 2. The patient was diagnosed with centralnervous system leukemia and required aggressivetreatment.
   患者被诊断出患有中枢神经系统白血病，需要积极的治疗。
3. 3. Researchersare exploring new treatments forcentral nervous system leukemiato improve patient outcomes.
   研究人员正在探索新的治疗中枢神经系统白血病的方法，以提高患者的预后。