| BC | breast cancer |
| BCS | breast conserving surgery |
| CT | chemotherapy |
| DFS | disease free survival |
| FISH | fluorescence in situ hybridization |
| FEC | 5-FluoroUracile, Epirubicin, Cyclophosphamide |
| FU | follow-up |
| HR | hormonal receptors |
| IHC | immunohistochemical |
| IMRT | Intensity Modulated Radiotherapy |
| MRI | magnetic resonance imaging |
| Pts | patients |
| RT | radiotherapy |
| Resp. | respective |
| SBRT | stereotactic body radiotherapy |