Histological types | Number | Percentage% |
Transitional cell carcinoma | 33 | 82.5 |
Squamous cell carcinoma | 3 | 7.5 |
Adenocarcinoma | 2 | 5 |
Sarcomatoid carcinoma | 1 | 2.5 |
Indifferenciated carcinoma | 1 | 2.5 |