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Les tumeurs urothéliales de la voie excrétrice supérieure possèdent un comportement biologique comparable à celui des tumeurs de la vessie. Les tumeurs papillaires superficielles évoluent rarement vers une maladie invasive, et ceci malgré un taux parfois élevé de récidive. Le développement de techniques endo-urologiques a permis d'aborder les tumeurs des voies excrétrices de la même façon que les...