A 23 y.o. patient complains of weakness, temperature rise up to 38 — 40°G. Objectively: liver and spleen are enlarged. Hemogram: Hb- 100 g/l, erythrocytes - 2,9 × 1012/l, leukocytes -4,4 × 109/l, thrombocytes - 48 × 109/l, segmentonuclear neutrophils - 17%, lymphocytes - 15%, blast cells - 68%. All cytochemical reactions are negative. Make a hematological conclusion: