Carcinoma in situ is significantly underdetected by prenephroureterectomy ureteroscopy in the management of upper tract urothelial cancers.

Objective. Diagnostic reliability of prenephroureterectomy ureteroscopy (PNU) for the detection of upper tract carcinoma in situ (CIS) remains unproven in particular and underreported in general. Methods.

Laparoscopic en bloc resection of ureter with a cuff of bladder during radical nephroureterectomy for lower ureteric tumors: a matched-paired analysis.

Background: Surgical management of the lower end of the ureter during laparoscopic nephroureterectomy remains a matter of debate. The commonest method during laparoscopic nephroureterectomy-endoscopic incision-has been shown to have a higher recurrence rate compared with open surgical excision with a cuff of bladder. In addition, the literature still lacks comparative studies between different approaches to support and guide the current clinical practice.