Renal tumor size. Clinicomorphological correlations


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Abstract

To reveal correlations between a renal tumor size and its clinical and morphological characteristics, we retrospectively analysed 263 case histories of patients with renal cell cancer. At a univariate analysis a maximal renal tumor size as a continuous variable significantly correlated with tumor differentiation, histological involvement of regional lymph nodes, presence of tumor necrosis, venous thrombosis, invasion into the collecting system, severity of clinical symptoms, 3- and 5-year cancer-specific survival. An increase of a tumor size, either as a continuous variable or a categorical one is accompanied with enhancement of tumor properties determining the outcome. The inclusion of a tumor size as a continuous parameter in the staging systems may have in the future a significant impact on accuracy of prediction of a renal cell cancer course and outcome, on specification of indications for various treatments.

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