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  Indian J Med Microbiol
 

Figure 2: (a) Infiltrating tumor in the dermis (H and E, 4×); (b) tumor composed of polygonal to cuboidal cells arranged in nests separated by thick fibrous septa. Mitosis marked by arrow (H and E, 40×); (c) areas of squamous differentiation. Duct formation marked by an arrow (H and E, 40×); (d) tumor cells positive for cytokeratin AE1/AE3 (immunohistochemistry, 10×)

Figure 2: (a) Infiltrating tumor in the dermis (H and E, 4×); (b) tumor composed of polygonal to cuboidal cells arranged in nests separated by thick fibrous septa. Mitosis marked by arrow (H and E, 40×); (c) areas of squamous differentiation. Duct formation marked by an arrow (H and E, 40×); (d) tumor cells positive for cytokeratin AE1/AE3 (immunohistochemistry, 10×)