According to our experience, mastery of ureteroscopic technique allows the urologist to proceed endourologically with minimum morbidity. Despite the new smaller semirigid instruments, this minimally invasive maneuver may sometimes be aggressive, and adequate training is imperative.

The endoscopic approach to the terminal ureter is safe and effective as part of one-step nephroureterectomy. Differences between the techniques with regard to operative time, complications, and oncologic outcome were not significant.

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