[Overview of the results of the treatment of transitional cell carcinoma by ureteroscopy].

Conservative treatment of the transitional cell carcinoma of the upper urinary tract by ureteroscopy is currently a therapeutic approach which is accepted by urologists. Recurrences are frequent (0-65%), as well as in bladder tumors; the longer the follow-up of the series the higher the recurrence. Multifocality, history of bladder tumor or renal pelvis localization are prognostic factors for recurrence. The treatment of recurrences may be conservative or radical depending on grade, stage and multifocality.