Table II.
Tumor characteristics of the patients (n=83).
| Tumor characteristic | Patients, n (%) |
|---|---|
| CRC stagea (n=75) | |
| 0 | 4 (5.3) |
| 1 | 12 (16.0) |
| 2 | 21 (28.0) |
| 3 | 23 (30.7) |
| 4 | 12 (16.0) |
| Not available | 3 (4.0) |
| Localized cancer | 75 (90.4) |
| Lower 2/3 rectum | 10 (12.0) |
| Upper 1/3 rectum and left colon | 40 (48.2) |
| Right and transverse colon | 24 (28.9) |
| Not available | 1 (1.2) |
| Adenomatous polyps | 8 (9.6) |
| KRAS status | |
| Available | 20 |
| Mutated | 8 (40.0) |
| Wild-type | 12 (60.0) |
| CEA at diagnosis (ng/ml) | |
| Available | 55 |
| <5 | 39 (70.9) |
| >5 | 16 (29.1) |
a
According to the 2015 Union for International Cancer Control guidelines; CEA, carcinoembryonic antigen; CRC, colorectal cancer.