(A) Characteristic small megakaryocytes with mono-/bi-lobated nuclei, (B) prominent dyserythropoiesis and (C) prominent dysgranulopoiesis in the BM aspirate smears of MDS with inv(3)/t(3;3) patients (Wright stain, (A) ×50, (B–C) ×100). (D). Small megakaryocytes with mono-/bi-lobated nuclei in the BM core biopsy (H&E stain, ×50). BM: bone marrow, MDS: myelodysplastic syndrome.