Fig. 3

Peripheral blood and bone marrow examination in case 3. a Peripheral blood smear shows circulating immature granulocytes, atypical monocytes and one atypical neutrophil in a background of hypochromic red blood cells with anisopoikilocytosis and increased target cells. The inset shows a circulating small megakaryocyte with naked nucleus. Wright–Giemsa stain, ×1000. b Bone marrow aspirate smears show a few dysplastic megakaryocytes (arrow heads) and many hypogranular neutrophils (arrows). Wright–Giemsa stain, ×1000. c Bone marrow core biopsy demonstrates hypercellularity with hyperplastic hematopoiesis. Note the increased immature precursors and a few small megakaryocytes. H&E stain, ×400. d p53 stain on the bone marrow biopsy showing many positive hematopoietic progenitor cells, ×400