| Bladder | Number of patients | |
| Grade 1 | Slight epithelial atrophy; minor telangiectasia (microscopic hematuria) | 0 |
| Grade 2 | Moderrate frequency; generalized telangiectasia; intermittent macroscopic hematuria | 0 |
| Grade 3 | Obstruction or bleeding requiring surgery | 0 |
| Grade 4 | Necrosis / perforation fistula | 0 |