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What is case history of peripheral smear is showing hypersegmented neutrophils , this is due to deficiency of and explain in detail?
Neutrophil hypersegmentation can be defined as the presence of neutrophils whose nuclei have six or more lobes or the presence of more than 3% of neutrophils with at least five nuclear lobes. ... The presence of hypersegmented neutrophils is an impoant diagnostic feature of megaloblastic anaemias. ref : robbins 10th ed