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  Indian J Med Microbiol
 

Figure 3: (a) Positive staining for melanin pigment within tumor cells embedded in a dense sclerotic stroma. Masson Fontana ×200. (b) Diff use HMB-45 positive tumor cells. (Diaminobenzidine, ×200). (c) HMB-45 positivity within tumor cells, on higher magnifi cation (Diaminobenzidine, ×400). (d) Focal desmin positivity within tumor cells (arrow heads). DAB ×200. Inset showing discrete tumor cells positive for desmin. (Diaminobenzidine, ×400)

Figure 3: (a) Positive staining for melanin pigment within tumor cells embedded in a dense sclerotic stroma. Masson Fontana ×200. (b) Diff use HMB-45 positive tumor cells. (Diaminobenzidine, ×200). (c) HMB-45 positivity within tumor cells, on higher magnifi cation (Diaminobenzidine, ×400). (d) Focal desmin positivity within tumor cells (arrow heads). DAB ×200. Inset showing discrete tumor cells positive for desmin. (Diaminobenzidine, ×400)