Table 2.

Diagnostic workup of patients with masses suspicious for UTUC

	Group A n=6	Group B n=7	Group C n=6	p
Mode of presentation, n (%)
Gross hematuria	3 (50)	3 (42.86)	4 (66.67)
Flank pain	0 (0)	4 (57.14)	1 (16.67)	0.15
Incidental finding	2 (33.33)	0 (0)	1 (16.67)
Followup for bladder cancer surveillance	1 (16.67)	0 (0)	0 (0)
History of bladder cancer, n (%)
None	3 (50)	7 (100)	5 (83.33)
Concurrent	0 (0)	0 (0)	0 (0)
Prior	3 (50)	0 (0)	1 (16.67)	0.08
History of cystectomy for bladder cancer, n (%)	3 (50)	0 (0)	0 (0)	0.04
Side of lesion, n (%)
Left	4 (66.67)	5 (71.43)	3 (50)	0.84
Right	2 (33.33)	2 (28.57)	3 (50)
Endoscopic findings
Grossly positive for tumour	4 (66.67)	4 (57.14)	4 (66.67)	1.00
Equivocal/unable to properly visualize	2 (33.33)	3 (42.86)	2 (33.33)
Method of biopsy, n (%)				1.00
Endoscopic biopsy	5 (83.33)	5 (71.43)	5 (83.33)
Percutaneous biopsy	0 (0)	0 (0)	0 (0)
Endoscopic brushing	1 (16.67)	2 (28.57)	1 (16.67)
Biopsy result, n (%)				0.39
Negative	5 (83.33)	4 (57.14)	2 (33.33)
Non-diagnostic	1 (16.67)	1 (14.29)	3 (50)
Atypical cells	0 (0)	2 (28.57)	1 (16.67)

UTUC: upper tract urothelial carcinoma.