| Kidney’s pathologies | Frequency | Percentage |
| Hydronephrosis by rectocolic tumor by | 1 | 1.10% |
| Hydronephrosis by retroperitoneal fibrosis | 2 | 2.20% |
| Hydronephrosis by gynecological tumors | 8 | 8.79% |
| Infections | 17 | 18.68% |
| Lithiasis | 7 | 7.69% |
| Malformation | 12 | 13.19% |
| Unspecified | 5 | 5.49% |
| Traumatic | 5 | 5.49% |
| Tumors | 34 | 37.36% |
| Total | 91 | 100.00% |