16例伴19p13异常急性淋巴细胞白血病患者的临床和实验室研究

目的 分析伴19p13异常的急性淋巴细胞白血病(ALL)患者的临床和实验室特征:方法 对16例伴19p13异常的ALL患者的细胞形态学、免疫学、细胞遗传学和临床特点进行回顾性分析,并对t(1;19)组和der(19)组的临床和实验室资料进行对比分析.结果 伴19p13异常的ALL占同期ALL的4.02%,其中t(1;19)(q23;p13)15例平衡易位t(1;19)(q23;p13)8例,不平衡易位der(19)t(1;19)(q23;p13)7例],t(17;19)(q22;p13)1例,t(1;19)组的外周血门细胞汁数和骨髓原始幼稚淋巴细胞比例明显高于der(19)组,而der(19)组的预后较t(1;19)组好.结论 19p13异常是ALL的一个非随机的染色体改变;伴有该异常的ALL患者具有独特的I临床特征和小良预后.

Clinical and laboratory characteristics of 16 patients with acute lymphoblastic leukemia (ALL) harboring 19p13 abnormalities

Objective To investigate the clinical and laboratory characteristics of patients with acute lymphoblastie leukemia (ALL) bearing 19p13 abnormalities. Methods The morphologic, immunophenotyp- ic, cytogenetie, and clinal features as well as prognosis of 16 ALL patients with 19p13 abnormalities were retrospectively analyzed. The clinical features and laboratory findings between t(1;19) and der(19) groups were compared. Results Sixteen (4.02%)out of 398 ALL patients had 19p13 abnormalities, among them 15 cases were t (1 ; 19) (q23 ; p 13) balanced t (1 ; 19) (q23 ; p 13} in 8 and unbalanced der (19) t (1 ; 19) (q23 ;p13} in 7] and 1 case t(17;19)(q22;p13). The W BC count and blast cell number were higher in the t (1 ; 19) group. The prognosis was better in der(19) t(1 ; 19) group than in balanced translocation t(1 ; 19) group. Conclusion The 19p13 abnormality is one of the non-random chromosomal aberration in patients with ALL. ALL patients with 19p13 abnormalities have unique clinical features and poor prognosis.