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  Indian J Med Microbiol
 

Figure 2: (a) Tumor tissue lined by ciliated columnar epithelium and subepithelial area showed sheets, lobules, and nests of malignant cells with intra- and extracellular melanin pigment. [H and E stain, x100] (b) Diffuse positivity of HMB-45. [Immunohistochemical (IHC) stain, x400]

Figure 2: (a) Tumor tissue lined by ciliated columnar epithelium and subepithelial area showed sheets, lobules, and nests of malignant cells with intra- and extracellular melanin pigment. [H and E stain, x100] (b) Diffuse positivity of HMB-45. [Immunohistochemical (IHC) stain, x400]