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Can We Foresee Grade and Stage Progression in Mixed Low- and High-Grade Noninvasive Papillary Urothelial Carcinomas?

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Noninvasive papillary urothelial carcinoma (NIPUC), currently classified in a two-tier system, frequently exhibits mixed low- and high-grade morphology. We aimed to determine the impact of histopathologic features on grade and stage progression in mixed NIPUCs... ...