Hypercellular
	Decreased myeloid/erythroid ratio and abundant stainable iron.
	RBC precursors: abnormally large and have nuclei that appear much less mature than would be expected from the development of the cytoplasm (nuclear-cytoplasmic asynchrony).
	Abnormal mitoses may be seen.
	Granulocyte precursors: many being larger than normal, including giant bands and metamyelocytes.
	Megakaryocytes are decreased and show abnormal morphology.

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