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  Indian J Med Microbiol
 

Figure 3: (a and b) Cyst wall and papillae lined by atypical urothelial cells with high-grade features. The bands of epithelium are multilayered and contain intraepithelial microspaces. Large areas of tumor necrosis seen (H and E, ×40). (c and d) The tumor cells show cytoplasmic positivity for CK 7 and nuclear positivity for WT1 (IHC, ×40)

Figure 3: (a and b) Cyst wall and papillae lined by atypical urothelial cells with high-grade features. The bands of epithelium are multilayered and contain intraepithelial microspaces. Large areas of tumor necrosis seen (H and E, ×40). (c and d) The tumor cells show cytoplasmic positivity for CK 7 and nuclear positivity for WT1 (IHC, ×40)