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Anthracosis, Lung, Aged Dog.
A, The fine black subpleural stippling represents peribronchiolar deposits of carbon. B, Inhaled carbon (black) has been phagocytized by macrophages and transported to the peribronchial/peribronchiolar tissue. H&E stain.
(A and B courtesy Dr. M.D. McGavin, College of Veterinary Medicine, University of Tennessee.)
