What is the difference between a bone marrow smear and a biopsy

Biopsy is a tissue case examination, and smear is a morphological examination. The two are different. Bone marrow smear can reflect the degree of proliferation of bone marrow cells, the proportion of cell components and changes in morphology. Biopsy can determine the degree and cause of cytopenias and bone marrow enlargement in patients, and can also determine the amount of iron stores, which is more accurate than a bone marrow smear.

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