Table 1.
Patient and tumor characteristics at recurrence.
| n | % | |
|---|---|---|
| CEA (ng/mL) | ||
| Median (range) | 6.82 | (0.20–109.28) |
| Histology | ||
| Adenocarcinoma | 14 | 34.1 |
| Mucinous ca | 1 | 2.4 |
| Not confirmed | 26 | 63.4 |
| Pattern of failure | ||
| Local only | 24 | 58.5 |
| Regional only | 6 | 14.6 |
| Locoregional | 6 | 14.6 |
| Local & distant | 2 | 4.9 |
| Regional & distant | 1 | 2.4 |
| Local, regional & distant | 2 | 4.9 |
| Tumor size (cm) | ||
| Median (range) | 3.3 | (1.5–11.0) |
| <3.3 cm | 20 | 48.8 |
| ≥3.3 cm | 21 | 51.2 |
| Initial RT isodose line | ||
| <40 Gy | 3 | 7.3 |
| 40–45 Gy | 7 | 17.1 |
| 45–50 Gy | 5 | 12.2 |
| ≥ 50 Gy | 26 | 63.4 |
| Guillem class | ||
| Axial | 10 | 24.4 |
| Anterior | 8 | 19.5 |
| Posterior | 9 | 22 |
| Lateral | 8 | 19.5 |
| Anterior & lateral | 5 | 12.2 |
| Posterior & lateral | 1 | 2.4 |
| rT stage | ||
| T0 | 6 | 14.6 |
| T1 | 0 | 0 |
| T2 | 0 | 0 |
| T3 | 7 | 17.1 |
| T4 | 28 | 68.3 |
| rN stage | ||
| N0 | 29 | 70.7 |
| N1 | 10 | 24.4 |
| N2 | 2 | 4.9 |
| R-stage | ||
| II | 26 | 63.4 |
| III | 10 | 24.4 |
| IV | 5 | 12.2 |
CEA, carcinoembryonic antigen; RT, radiotherapy.