Leukemia of early cells of the lymphocyte series. Occurs more frequently in children
acute leukemia characterized by proliferation of immature lymphoblast-like cells in bone marrow, lymph nodes, spleen, and blood; most common in children
A form of leukemia characterized by replacement of normal bone marrow by immature (blast) cells of the blood-forming series. Eighty per cent of cases are in children less than 10 years of age. Cure rate is 65-75%.