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  Indian J Med Microbiol
 

Figure 2: (a) Esophageal mucosa showing granular brownish black pigment in the basal layers (H and E, ×200). (b) Esophageal mucosa showing granular brownish black pigment in the basal layers (H and E, ×400). (c) Masson-Fontana stain showing black stain in the basal layers (×200). (d) Melan-A positive cells in the mucosal basal layers (×200)

Figure 2: (a) Esophageal mucosa showing granular brownish black pigment in the basal layers (H and E, ×200). (b) Esophageal mucosa showing granular brownish black pigment in the basal layers (H and E, ×400). (c) Masson-Fontana stain showing black stain in the basal layers (×200). (d) Melan-A positive cells in the mucosal basal layers (×200)