Performance of Urinary Markers for Detection of Upper Tract Urothelial Carcinoma: Is Upper Tract Urine More Accurate than Urine from the Bladder?

Table 4

Specificities and false-positive rates for cytology and FISH in UUT-derived urine dependent on concomitant or recent urothelial carcinoma of the bladder.

Status	Cytology		FISH
	Specificity	False-positive rate, %	Specificity	False-positive rate, %
No BC	69.4	30.6	53.6	46.4
BC treated within last eight weeks, currently no BC	33.3	66.7	60.0	40.0
Concomitant BC	50.0	50.0	31.8	68.2

FISH = fluorescence in situ hybridization; BC = bladder-located urothelium carcinoma; UUT = upper urinary tract.