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  • Title: Association of B-chronic lymphocytic leukemia and acute myeloid leukemia.
    Author: Carulli G, Marini A, Baccelli E, Lambelet P, Lari T, Azzarà A.
    Journal: J Exp Clin Cancer Res; 2007 Sep; 26(3):421-4. PubMed ID: 17987806.
    Abstract:
    A 62-year-old man presented with fatigue, pallor and mild weight loss. Laboratory studies showed Hb 7.6 g/dl, Hct 21.8%, WBC 108x10(9)/1, PLT 143x10(9)/1. At morphological examination, circulating cells appeared as 60% blasts and 40% lymphocytes, with smudge cells. A bone marrow aspirate showed infiltration by blasts (50%) and lymphocytes (40%); alpha-naphtyl-acetate esterase was positive in 90% of blasts, while myeloperoxidase was positive in 10%. The immunologic phenotype of blasts was characterized by the co-expression of CD13, CD33, CD14, CD4, CD15, CD64, CD117, HLA-DR, CD11b. Lymphocytes were characterized by a B-CLL immunophenotype: CD19+, CD5+, CD23+, CD20+(dim), FMC7+(dim), K light chain+(dim). Karyotype was normal and PCR assays for AML-ETO, CBFbeta-MYH11, PML-RARalpha, BCR-ABL and bcl-1/JH translocation were negative. Coexistence of CLL and AML with monoblastic features was diagnosed. Simultaneous appearance of CLL and AML has rarely been described and represents a peculiar biological phenomenon.
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