Characteristics

Number (%)

Gender

Male

13 (57)

Female

10 (43)

Risk factors

Smoking

10 (43)

Obesity

6 (26)

Renal failure, hemodialysis

0 (0)

Kidney transplant

0 (0)

Professional exposure

0 (0)

Family cases

0 (0)

Circumstances of discovery

Back pain

23 (100)

Haematuria

6 (2)

Lucky find

0 (0)

Performance status (PS)

1 - 2

18 (78)

3

5 (22)