Patient Characteristics
| Characteristic | Primary staging (n = 12) | Restaging (n = 76) |
| Primary tumor location | 12 (100.0%) | 76 (100.0%) |
| Chest | 3 (25.0%) | 10 (13.2%) |
| Pancreas | 4 (33.3%) | 18 (23.7%) |
| Small bowel | 1 (8.3%) | 30 (39.5%) |
| Colon | 1 (8.3%) | 4 (5.3%) |
| Other | 0 (0.0%) | 5 (6.6%) |
| Unknown | 3 (25.0%) | 9 (11.8%) |
| Tumor grade | ||
| Low | 6 (50.0%) | 34 (44.7%) |
| Intermediate | 2 (16.7%) | 26 (34.2%) |
| High | 0 (0.0%) | 7 (9.2%) |
| Unknown | 4 (33.3%) | 9 (11.8%) |
| Tumor stage | ||
| I | 0 (0.0%) | 8 (10.5%) |
| II | 1 (8.3%) | 2 (2.6%) |
| III | 1 (8.3%) | 12 (15.8%) |
| IV | 3 (25.0%) | 48 (63.2%) |
| Unknown | 7 (58.3%) | 6 (7.9%) |