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| Extracapsular dissection (n=7) | Superficial parotidectomy (n=12) | |
|---|---|---|
| Positive tumour margin | 2 | 0 |
| Close tumour margin | 3 | 7 |
| Tumour spillage | 0 | 2 |
| High-grade cancer | 2 | 3 |
| Adenoid cystic carcinoma | 1 | 3 |
For some tumours, there may have been more than one indication for postoperative radiotherapy.
