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Tumor Cells Showed Variability in Nuclear Expression According to the Growth Pattern of Invasion. c-Myc immunostained sections revealed strong homogeneous nuclear expression in almost all tumor cells displayed infiltrative pattern of conventional urothelial carcinoma (x200) (A and B) and sarcomatoid urthelial carcinoma (x 400) (C and D), while sporadic tumor cells exhibited nodular and trabecular patterns showed heterogenous nuclear staining (x200) (E and F).
