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Squamous Differentiation in Urothelial Carcinoma

slide 12 of 18

Comments:
The presence of keratin pearls and copious keratin production is unequivocal for squamous differentiation in this urothelial carcinoma. Such foci comprised approximately 5% of the tumor. The presence of focal squamous differentiation in a urothelial carcinoma does not appear to have any prognostic significance.

slide 12 of 18