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Figure 3: (a) Refractile, coarse brown pigment fills the cytoplasm of the alveolar macrophages. Note the mild septal thickening. (b) Calcific incrustation of the small-sized pulmonary artery (H and E, ×250).

Figure 3: (a) Refractile, coarse brown pigment fills the cytoplasm of the alveolar macrophages. Note the mild septal thickening. (b) Calcific incrustation of the small-sized pulmonary artery (H and E, ×250).