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Examples of PMNs, macrophages, and foreign body giant cells (FBGCs). (1) PMNs are distinguishable due to their multilobed nucleus and eosinophilic cytoplasm. (2) Macrophages have a basophilic cytoplasm and a bean-shaped or ovoid nucleus. (3) FBGCs are large clusters of fused macrophages. The image was taken at 400× magnification.
