bcr-abl融合基因阳性原发性血小板增多症一例报道并文献复习

 目的 提高对bcr-abl融合基因阳性原发性血小板增多症（essential thrombocythemia，ET）的认识。方法 报告1例bcr-abl融合基因阳性ET（bcr-abl+ET）并进行文献复习。结果 bcr-abl+ ET具有女性多见、脾脏不大或仅轻度大、外周血白细胞大多＜40 ×109／L、嗜碱粒细胞常不增多，幼稚粒细胞少见、骨髓有核细胞增生以粒系和巨核系两系或单系巨核系增生为主、中性粒细胞碱性磷酸酶积分正常或增高等特点。结论 bcr-abl+ ET有别于经典的慢性粒细胞白血病及ET，可能是ET的一种新的变异型。

bcr-abl gene positive essential thrombocythemia: one case report and literature review

Objective To improve the recognition of bcr-abl gene positive essential thrombocythemia （ET）. Methods A case of bcr-abl gene positive ET was reported and the related literature was reviewed. Results The bcr-abl+ ET had following characters: female predominance, milder or no splenomegaly, periph－eral leukocytes count ＜40 ×109/L , less or no basophilia and fewer immature granulocytes in peripheral blood, bone marrow granulocytic and/ or megakaryocytic lineage hyperplasia and normal or increased neutrophil al－kaline phosphatase score. Conclusion bcr-abl+ ET may be considered as a new member of chronic myelo－proliferative disease, a variant of essential thrombocythemia.