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  Indian J Med Microbiol
 

Figure 2: (a) Numerous CD68 positive histiocytes are present in the subepithelial connective tissue of the major bronchus. (b) CD163 positive histiocytes in the submucosal layer of a major bronchus with kidney - shaped nuclear outline. (c) Positive CD1A stained cells (arrowhead) in the bronchial submucosal tissues. (d) Dark brown stained S - 100 protein positive cells (arrowhead) located in intra - epithelial layer

Figure 2: (a) Numerous CD68 positive histiocytes are present in the subepithelial connective tissue of the major bronchus. (b) CD163 positive histiocytes in the submucosal layer of a major bronchus with kidney - shaped nuclear outline. (c) Positive CD1A stained cells (arrowhead) in the bronchial submucosal tissues. (d) Dark brown stained S - 100 protein positive cells (arrowhead) located in intra - epithelial layer