THERAPY-RELATED ACUTE MYELOGENOUS LEUKEMIA ASSOCIATED WITH 11Q23 CHROMOSOMAL-ABNORMALITIES AND TOPOISOMERASE-II INHIBITORS - REPORT OF 4 ADDITIONAL CASES AND BRIEF COMMENTARY

被引:13
作者
BREDESON, CN [1 ]
BARNETT, MJ [1 ]
HORSMAN, DE [1 ]
DALAL, BI [1 ]
RAGAZ, J [1 ]
PHILLIPS, GL [1 ]
机构
[1] VANCOUVER GEN HOSP,LEUKEMIA BONE MARROW TRANSPLANTAT PROGRAM BRITISH COLUMBIA,DIV HEMATOL,VANCOUVER V5Z 4E3,BC,CANADA
关键词
THERAPY-RELATED AML; 11Q23 CHROMOSOMAL ABNORMALITIES; TOPOISOMERASE-II INHIBITORS; EPIPODOPHYLLOTOXINS;
D O I
10.3109/10428199309054742
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
We report 4 additional cases of therapy-related acute myelogenous leukemia (t-AML) with the translocation t(9;11)(p22q23). Chemotherapy for the primary malignancy (breast carcinoma in 2, non-Hodgkin's lymphoma in 2) included agents with topoisomerase II inhibitory activity (doxorubicin in 2; doxorubicin and etoposide in 1; doxorubicin, etoposide and mitoxantrone in 1) as well as alkylators. In agreement with previous reports, the leukemia was monoblastic (FAB M5 subtype) in all 4 patients, with only 1 having prior myelodysplasia, and the latency period from primary therapy was relatively short (24-48 months). All patients received potentially curative treatment for the leukemia which included allogeneic bone marrow transplantation in 3; however, all died (3 of t-AML and 1 of lymphoma). Therapy-related AML associated with exposure to agents with topoisomerase II inhibitory activity (epipodophyllotoxins and anthracyclines) is a distinct entity, the genetic basis and optimal treatment of which remain to be determined.
引用
收藏
页码:141 / 145
页数:5
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