1. Introduction -- 2. Identification of abnormal B-cell populations -- 3. Identification of abnormal T-cell populations -- 4. Antigen expression during myeloid and lymphoid differentiation -- 5. Identification of blasts -- 6. Immunophenotypic features of dyspoiesis in maturing myeloid and monocytic neoplasms -- 7. Flow cytometry limitations -- 8. Phenotypic markers -- 9. Mature B-cell neoplasms -- 10. Peripheral (mature) T- and NK-cell neoplasms -- 11. Acute myeloid leukemia -- 12. Precursor lymphoid neoplasms -- 13. Myelodysplastic syndromes and chronic myeloProfiliferative neoplasms.