| pN0 (n = 33) | pN1 (n = 67) | pN2–3 (n = 43) | |
| Patients with recurrence | 10 (30) | 23 (34) | 32 (74) |
| Initial recurrence site | |||
| Local (only) | 4 (12) | 9 (13) | 3 (7) |
| Brain | 3 (9) | 5 (7) | 4 (9) |
| Bone | 1 (3) | 0 | 6 (14) |
| Lung | 0 | 5 (7) | 3 (7) |
| Liver | 0 | 0 | 2 (5) |
| Adrenal gland | 0 | 0 | 2 (5) |
| Cervical nodes | 0 | 0 | 1 (2) |
| Small bowel | 0 | 1 (1) | 0 |
| Multiple organs | 2 (6) | 3 (4) | 11 (26) |
*Data are presented as number of patients (%).