TABLE 1.
Patient and clinical characteristics
| Patients, n | 68 |
| Age (years), median (range) | 67.7, (45.1‐89.4) |
| Gender, n (%) | |
| Female | 27 (39.7) |
| Male | 41 (60.3) |
| Adj. therapy, n (%) a | 37 (54.4) |
| Location of primary tumor, n (%) | |
| Colon | 44 (64.7) |
| Rectum | 24 (35.3) |
| Primary tumor N stage, n (%) | |
| N0 | 18 (26.5) |
| N+ | 44 (64.7) |
| NA b | 6 (8.8) |
| Synchronous liver metastases, n (%) c | |
| No | 37 (54.4) |
| Yes | 30 (44.1) |
| NA | 1 (1.5) |
| Number of liver metastases, n (%) | |
| Single | 29 (43.6) |
| Multi | 36 (52.9) |
| NA | 3 (4.4) |
| Diameter of largest liver metastasis, n (%) | |
| ≤3 cm | 24 (35.3) |
| >3 cm | 26 (38.2) |
| NA | 18 (26.5) |
| KRAS mutations status, n (%) | |
| Wildtype | 36 (52.9) |
| Mutated | 30 (44.1) |
| NA | 2 (2.9) |
| Patients with indetermined CT findings, n (%) d | 21(30.9) |
| Relapse, n (%) | 48 (70.6) |
| Relapse site (first), n (%) | |
| Oligo—liver | 29 (42.6) |
| Oligo—lung | 13 (19.1) |
| Multiple—liver and lung | 4 (5.9) |
| Oligo—other | 2 (2.9) |
| Lung relapse diameter (mm), mean (SD) | 8.1 (±2.7) |
a
Only after both CRC and liver resection.
b
Not available.
c
Synchronous liver metastases: synchronous diagnosis of primary colorectal tumor and metastatic disease.
d
Only the first nonspecific finding from each patient.