CD34 and acute lymphoblastic leukemia: Additionally, there were significantly more cases of bone marrow involvement, hepatic involvement, leukocytosis > 100 × 109/L, hemoglobin level < 12 g/dL, platelet count < 100 × 109/L, LDH elevation above the normal range, CD34 positivity, and allo‐HSCT in the T‐ALL group than in the T‐LBL group.