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  Indian J Med Microbiol
 

Figure 3: (a) Tumor composed of tumor cells arranged in sheets displaying polygonal cells having round vesicular nuclei, small eosinophilic nucleoli, and moderate amount of cytoplasm containing abundant melanin pigment. Mitotic figures are occasional (H and E ×400), (b) Tumor and adjoining brain showing tumor cells infiltration into the adjacent brain parenchyma (H and E ×100), (c) Melanin pigment got bleached with potassium permagnate (Bleach ×200), (d) Black pigmentation shown by Masson Fontana (Masson Fontana ×200)

Figure 3: (a) Tumor composed of tumor cells arranged in sheets displaying polygonal cells having round vesicular nuclei, small eosinophilic nucleoli, and moderate amount of cytoplasm containing abundant melanin pigment. Mitotic figures are occasional (H and E ×400), (b) Tumor and adjoining brain showing tumor cells infiltration into the adjacent brain parenchyma (H and E ×100), (c) Melanin pigment got bleached with potassium permagnate (Bleach ×200), (d) Black pigmentation shown by Masson Fontana (Masson Fontana ×200)