CD34 and T-cell acute lymphoblastic leukemia: According to Ebinger et al. (24), who studied a group of 42 children with BCP-ALL and T-ALL (T-cell acute lymphoblastic leukemia), a high percentage of CD34+CD38− on the day of diagnosis may be related to poor response to treatment on Day 33 and at week 12 of therapy in children with B-cell leukemia (24).