MP40-19 HOW TO IDENTIFY PATIENTS SUITABLE FOR CONSERVATIVE MANAGEMENT OF UPPER TRACT UROTHELIAL CARCINOMA (UTUC) ACCORDING TO TUMOR SIZE: IMPLICATIONS FOR CLINICAL GUIDELINES. (May 2022) - Ventimiglia, Eugenio; Corsini, Christian; Fantin, Margherita; de Angelis, Mario; Dioni, Pietro; Moschini, Marco; Raggi, Daniele; Ponzoni, Maurilio; Capitanio, Umberto; Necchi, Andrea; Lucianò, Roberta; Traxer, Olivier; et al.