Flow cytometry confirmed precursor B-cell acute lymphoblastic leukemia (B-ALL), with the blasts expressing CD123, CD73/86, CD9, CD34, TdT, HLA-DR, CD58, CD38, cCD22, sCD22, cCD79a, and CD19, along with partial expression of CD24 and aberrant CD33. The gene discussed is CD34; the disease is acute lymphoblastic leukemia.