open access: World J Surgery - (Lynch Syndrome patients) The oncologic impact of a delay between diagnosis and radical nephroureterectomy due to diagnostic ureteroscopy in upper urinary tract urothelial carcinomas: results from a large collaborative database

 Conclusion
The implementation of diagnostic ureteroscopy increases
the time leading to RNU without signiWcantly altering cancer-
speciWc, recurrence-free or metastasis-free survival,
even for MI lesions. Our data and the current guidelines
indicate that diagnostic ureteroscopy can be performed systematically
for the appraisal of UTUC to reWne the therapeutic
strategy without aVecting oncological outcomes.