the most common form of leukemia in children. 1 This lymphoid malignancy, manifested by
the proliferation of lymphopoietic blast cells, represents a heterogeneous group of diseases
that vary with respect to morphological, cytogenetic, and immunologic features of the
transformed cells. Technical improvements in immunofluorescence staining and flow
cytometry together with the availability of numerous monoclonal antibodies (MoAbs) that …