纯红细胞再生障碍性贫血(pure red cell aplasia,PRCA),简称纯红再障,是以骨髓单纯红系造血衰竭或紊乱为特征的一组异质性疾病。临床较为少见,近年研究认为其发生主要与机体免疫功能紊乱有关[1]。我院在2002年1月—2007年12月采用以环孢菌素A(CsA)联合雄激素治疗4例纯红再障,现 Pure red cell aplasia (PRCA), referred to as pure red aplasia, is a group of heterogeneous diseases characterized by bone marrow pure erythrocytic hematopoietic failure or disorder. Clinical relatively rare, in recent years, the study found that its occurrence is mainly associated with immune dysfunction [1]. In our hospital from January 2002 to December 2007 with cyclosporin A (CsA) combined with androgen treatment of 4 cases of pure red aplasia, is