| Epidemiological and clinical aspects | Number (n = 18) | (%) | ||
| Epidemiological characteristics | Age | [6 months - 36 months] | 12 | 66% |
| [36 months - 59 months] | 6 | 34% | ||
| Sex | Male | 7 | 39% | |
| Female | 11 | 61% | ||
| Clinical signs | Reason for consultation | Abdominal mass | 11 | 61% |
| Abdominal pain | 2 | 11% | ||
| Nephroblastoma | 4 | 22% | ||
| Renal tumor | 1 | 06% | ||
| Physical signs | Abdominal mass | 18 | 100% | |
| Abdominal pain | 8 | 44% | ||
| Weight loss | 8 | 44% | ||
| Fever (temperature > 38˚C) | 3 | 17% | ||