Grading Noninvasive Bladder Cancer: World Health Organisation 1973 or 2004 May Be the Wrong Question.

Varma, Murali; Delahunt, Brett; van der Kwast, Theodorus · Eur Urol · 2019

editorial · Level V

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Abstract

The clinical utility of the World Health Organisation 1973 and 2004 systems for grading bladder cancer are limited by inclusion of biologically heterogeneous categories of grade 2 and high grade, respectively. Reporting both systems in parallel would improve risk stratification by splitting these categories.

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