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  Indian J Med Microbiol
 

Figure 3: Biopsy from nasal mass in exacerbation showing S100 to be positive in foamy cells (a), while CD68 is negative (b). (Immunocytochemistry for S100 (a) and CD68 (b), 3200)

Figure 3: Biopsy from nasal mass in exacerbation showing S100 to be positive in foamy cells (a), while CD68 is negative (b). (Immunocytochemistry for S100 (a) and CD68 (b), 3200)