Pathology Which of the following is not expressed in majority of cases of pediatric B-cell acute lymphoblastic leukemia? A Terminal deoxynucleotidyl transferase (TdT) B CD19 C CD10 D CD7 💡 Explanation Which of the following is not expressed in majority of cases of pediatric B-cell acute lymphoblastic leukemia? ✓ Correct Answer: D. CD7