[Immunophenotyping of childhood leukemias--results of the first 100 bone marrow tests]

The authors used a cell-surface-marker analysis by flow cytometry for immunophenotyping of pediatric leukemia from 1993. Results of their first one-hundred cases were summarized. They examined 68 bone-marrow samples from 58 patients affected by leukemia, and diagnosed 19 acute myeloid leukemia (32%), 5 T-cell acute lymphoid leukemia (8%), 32 B-cell acute lymphoid leukemia (54%) and 2 biphenotypic leukemia (5%). A higher CD34 antigen positivity was found compared to adults. They analysed the incidence and prognostic significance of myeloid + lymphoid leukemia and lymphoid + myeloid leukemia cases. Nondiagnostic and unsuccessful cases were got according to the literature.