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Figure 4: (a) There are hemosiderin-laden macrophages in the alveolar spaces. (H and E, ×40) (b) In the alveolar spaces are hemosiderin-laden macrophages. Anthracosis pigments are in the septa. There is no evidence of inflammation (H and E, ×200,). (c) Staining for iron demonstrates alveoli filled with hemosiderin-laden macrophages. (×100, Perls' Prussian blue)

Figure 4: (a) There are hemosiderin-laden macrophages in the alveolar spaces. (H and E, ×40) (b) In the alveolar spaces are hemosiderin-laden macrophages. Anthracosis pigments are in the septa. There is no evidence of inflammation (H and E, ×200,). (c) Staining for iron demonstrates alveoli filled with hemosiderin-laden macrophages. (×100, Perls' Prussian blue)