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  Indian J Med Microbiol
 

Figure 1: Case 1. (a) Cellular tumor in a solid nesting pattern below respiratory mucosa. H and E, ×200. (b). Polygonal cells in a nesting-type pattern with intervening thin-walled blood vessels. H and E, ×200. (c). Tumor cells with moderate to abundant, granular to vacuolated cytoplasm (at places) and central nuclei with prominent nucleoli. H and E, ×400. (d and e). Immunohistochemistry. (d). Tumor cells displaying TFE3 positivity. Diaminobenzidine, ×200. (e). Tumor cells displaying aberrant granular cytoplasmic HMB45 reactivity. DAB, ×400

Figure 1: Case 1. (a) Cellular tumor in a solid nesting pattern below respiratory mucosa. H and E, ×200. (b). Polygonal cells in a nesting-type pattern with intervening thin-walled blood vessels. H and E, ×200. (c). Tumor cells with moderate to abundant, granular to vacuolated cytoplasm (at places) and central nuclei with prominent nucleoli. H and E, ×400. (d and e). Immunohistochemistry. (d). Tumor cells displaying TFE3 positivity. Diaminobenzidine, ×200. (e). Tumor cells displaying aberrant granular cytoplasmic HMB45 reactivity. DAB, ×400