TY - CHAP M1 - Book, Section TI - The Acute Lymphocytic Leukemias A1 - Lichtman, Marshall A. A1 - Kaushansky, Kenneth A1 - Prchal, Josef T. A1 - Levi, Marcel M. A1 - Burns, Linda J. A1 - Armitage, James O. Y1 - 2017 N1 - T2 - Williams Manual of Hematology, 9e AB - Acute lymphocytic (synonym: lymphoblastic) leukemia (ALL) is a neoplastic disease of immature lymphocytes or lymphocyte progenitor cells of either the B- or T-cell lineage.The immune phenotype of the leukemia cells reflects the cell lineage and differentiation stage of the transformed clone.At diagnosis, the leukemia cells typically have replaced normal cells in the marrow and have disseminated to various extramedullary sites, accounting for many of the clinical manifestations.Both immunologic and genetic subgroups have therapeutic implications.Survival for patients with ALL has improved with nearly 90% of children and 40% of adults achieving long-term disease-free survival, although patients older than 60 years of age still have a poor prognosis. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/04/18 UR - hemonc.mhmedical.com/content.aspx?aid=1133364718 ER -