Carcinoma In Situ Is Significantly Underdetected by Prenephroureterectomy Ureteroscopy in the Management of Upper Tract Urothelial Cancers

Table 1

Demographic characteristics of the study cohort.

Cohort characteristics		Number (%age)
Total number		300
Number with pre nephroureterectomy ureteroscopy (PNU)		106
Numbers with PNU biopsy		92
Mean age in years (standard deviation)		71.82 ± 8.67
Gender	Male	180 (60%)
	Female	120 (40%)
Stage	pTa	116 (38.7%)
	pT1	83 (27.3%)
	pT2	51 (17%)
	pT3	49 (16.3%)
Grade	G1/G2	89 (29.6%)
	G3	146 (48.6%)
	CIS	65 (21.6%)
Multifocal		143 (47.6%)
Urinary bladder recurrences		83 (27.6%)
Contralateral upper tract recurrence		28 (9.3%)