再生障碍性贫血(aplastic anemia,AA)是多种病因引起的造血障碍综合征,近年来生存率得到明显改善,生存时间明显延长。人们长期随访发现部分AA有向恶性疾病及克隆性疾病进展或"转变"的风险,发病机制可能包括造血干细胞自身缺陷、造血微环境影响、治疗干预等。
Aplastic anemia(AA)is one of the bone marrow failure diseases.It was found that some AA cases were with risks to evolute to malignant or clonal diseases.The mechanism of the evolution might include hematopoietic stem cell defection,marrow microenvironent disorder,treatment interferes and so on.