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  Indian J Med Microbiol
 

Figure 3: Case 2. (a). Cellular tumor below keratinized squamous epithelium. H and E, ×100. (b). Polygonal-shaped cells in a nesting/organoid pattern with interspersed multinucleate giant cells. H and E, ×200. Inset: Cells with vacuolated cytoplasm, around thin-walled blood vessels with interspersed multinucleate giant cells. (c-e). Immunohistochemistry. (c). TFE3 immunopositivity, including multinucleate tumor giant cells (arrow). DAB, ×400. (d). Diffuse HMB45 positivity. DAB, ×400. (e). Perivascular and focal SMA positivity. DAB, ×400

Figure 3: Case 2. (a). Cellular tumor below keratinized squamous epithelium. H and E, ×100. (b). Polygonal-shaped cells in a nesting/organoid pattern with interspersed multinucleate giant cells. H and E, ×200. Inset: Cells with vacuolated cytoplasm, around thin-walled blood vessels with interspersed multinucleate giant cells. (c-e). Immunohistochemistry. (c). TFE3 immunopositivity, including multinucleate tumor giant cells (arrow). DAB, ×400. (d). Diffuse HMB45 positivity. DAB, ×400. (e). Perivascular and focal SMA positivity. DAB, ×400