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Patterns of colorectal cancer recurrence according to serum carcinoembryonic antigen levels n (%)
| Patterns of CRC recurrence |
CEA levels |
P value | |
| ≤ 5 ng/mL | > 5 ng/mL | ||
| Local relapse | 26 (63.4) | 15 (36.6) | |
| Metastasis (single) | 11 (33.3) | 22 (66.7) | 0.007 |
| Metastases (multiple) | 4 (25.0) | 12 (75.0) | |
CEA: Carcinoembryonic antigen; CRC: Colorectal cancer.
