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Figure 3: (a) H and E (×100) Infiltrative tumor showing squamous differentiation with keratin pearls; and (b) a focal organoid pattern; (c) H and E (×100) showing cords of tumor cells showing small round morphology; (d and e) H and E (×100 and × 200) showing dysplasia and squamous metaplasia of transitional lining at pelvis; (f) H and E (×20) showing lamina invasion by papillary urothelial carcinoma in ureter

Figure 3: (a) H and E (×100) Infiltrative tumor showing squamous differentiation with keratin pearls; and (b) a focal organoid pattern; (c) H and E (×100) showing cords of tumor cells showing small round morphology; (d and e) H and E (×100 and × 200) showing dysplasia and squamous metaplasia of transitional lining at pelvis; (f) H and E (×20) showing lamina invasion by papillary urothelial carcinoma in ureter