| Circumstance of discovery | Types | Effective | Fréquency (%) |
| Clinical anomaly (n = 14) | Nodule or mass | 5 | 36 |
| Inflammatory tuméfaction | 4 | 28.6 | |
| Nodule + mastodynia | 2 | 14 | |
| Other | 3 | 21.4 | |
| Tracking anomaly (n = 1) | - | 1 | - |