RT Book, Section A1 Lichtman, Marshall A. A1 Kaushansky, Kenneth A1 Prchal, Josef T. A1 Levi, Marcel M. A1 Burns, Linda J. A1 Armitage, James O. SR Print(0) ID 1133364910 T1 Large Granular Lymphocytic Leukemia T2 Williams Manual of Hematology, 9e YR 2017 FD 2017 PB McGraw-Hill Education PP New York, NY SN 9781259642470 LK hemonc.mhmedical.com/content.aspx?aid=1133364910 RD 2024/04/25 AB T-cell large-granular lymphocytic (T-LGL) leukemia results from the clonal expansion of large granular lymphocytes (LGLs) with a T-cell (CD3+) phenotype and a clonal T-cell receptor gene rearrangement(s).Natural killer (NK)-LGL leukemia is a clonal expansion of LGL with a NK cell (CD3–) phenotype. It lacks convenient markers to determine clonality, such as antigen receptor rearrangements. (See Chap. 66.)