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再生障碍性贫血(简称再障)是由各种病因引起的骨髓造血功能障碍,以全血细胞减少为特点的综合症,以慢性型多见。典型患者的骨髓象有核细胞增生减低或重度减低,在排除其他引起全血细胞减少的疾病后,诊断原发性再障一般不难。由于骨髓损伤的向心性发展,病变的不均匀性,以及代偿性造血灶的出现,骨髓有核细胞增生活跃者并不少见;加之,全血细胞减少的程度不等,先后不定,因而有不典型或“增生型”再障之称。再障可能为其他
Aplastic anemia (referred to as aplastic anemia) is caused by a variety of causes of bone marrow dysfunction, characterized by pancytopenia syndrome, more common in chronic type. In a typical patient, there is a reduction or a severe reduction of myeloid nuclei like hyperplasia, and it is generally not difficult to diagnose primary aplasia after excluding other disorders that cause pancytopenia. Due to the concentric development of bone marrow damage, non-uniformity of lesions, and the emergence of compensatory hematopoietic cells, bone marrow hyperplasia active are not uncommon; In addition, the degree of pancytopenia, one after another, and therefore not Typical or “hyperplastic” aplastic anemia. Aplastic anemia may be other