CD34 and acute myeloid leukemia: We have identified FCS files corresponding to a diverse patient pool: 10 patients diagnosed with AML with CD34-positive, 10 patients with AML with CD34-negative, 10 patients with B-ALL with CD34-positive, 10 patients with B-ALL with CD34-negative, 10 patients with B-cell lymphoma, 10 patients with normal findings and ten patients with T-lymphoblastic leukemia.