Congenital leukemia: A case report and review of literature

Figure 1 Representative images of the bone marrow smear. A: Nearly 35% of the cells in the smear show primordial morphology, including round or oval shape and scant and bluish cytoplasm with red particles and protrusions (orange arrows); B: Pox staining: 3% of the original cells were positive; 1% were weakly positive; and 96% were negative (orange arrow); C: Periodic acid-schiff staining: 100% of the original cells were negative (orange arrows).