Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02215, USA.
J Clin Oncol. 2013 Apr 1;31(10):1262-6. doi: 10.1200/JCO.2012.43.4258. Epub 2013 Feb 25.
A 42-year-old woman presented with bruising and fatigue. Her WBC count was 10,370/μL, with a differential showing 5% polys, 5% monos, 10% lymphocytes, and 80% myeloid-appearing blasts, some of which contained Auer rods (Fig 1). Bone marrow examination revealed 90% infiltration with myeloid-appearing blasts, and flow cytometry analysis confirmed the diagnosis of acute myeloid leukemia (AML) with expression of CD33, CD13, and CD117. Cytogenetics revealed a normal female karyotype; molecular testing for NPM1, FLT3-ITD, and CEBPαmutations revealed wild-type status for each gene. The patient received induction therapy with daunorubicin 90 mg/m(2) per day for 3 days and continuous-infusion cytarabine 100 mg/m(2) per day for 7 days. After an induction course complicated by Gram-negative bacterial sepsis, her counts recovered by day 32, and bone marrow examination 6 weeks after diagnosis showed a complete remission. One week later she feels well and has normal physical and laboratory examinations. She is an only child (but has a common HLA type) and presents for discussion of postremission therapy options.
一位 42 岁女性因瘀斑和疲劳就诊。她的白细胞计数为 10370/μL,白细胞分类显示 5%多形核白细胞、5%单核细胞、10%淋巴细胞和 80%髓系样原始细胞,其中一些含有 Auer 小体(图 1)。骨髓检查显示 90%浸润为髓系样原始细胞,流式细胞术分析证实诊断为急性髓系白血病(AML),表达 CD33、CD13 和 CD117。细胞遗传学显示正常女性核型;NPM1、FLT3-ITD 和 CEBPα基因突变的分子检测显示每个基因均为野生型。患者接受了诱导治疗,每天给予柔红霉素 90mg/m2,连用 3 天,每天给予连续输注阿糖胞苷 100mg/m2,连用 7 天。在诱导治疗过程中并发革兰阴性菌败血症后,她的计数在第 32 天恢复,诊断后 6 周的骨髓检查显示完全缓解。1 周后她感觉良好,体格检查和实验室检查均正常。她是独生女(但具有共同 HLA 类型),前来讨论缓解后治疗选择。