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Reasons for preoperatively confirmed unfeasibility of intraoperative radiotherapy (IORT; n = 62)
| Reason | Frequency | Percent |
|---|---|---|
| Minor tumor–skin distance | 35 | 56.5 |
| Oversized tumor cavity | 19 | 30.6 |
| Combination of minor tumor–skin distance and oversized tumor cavity | 4 | 6.5 |
| Multicentric breast cancer | 2 | 3.2 |
| Surgical technique (central segment resection) | 1 | 1.6 |
| Open sampling of a second focal finding | 1 | 1.6 |
