| Test code | Test name | Clinical description |
|---|---|---|
| S469 | Cancer Ag 15-3 (CA 15-3) | Rarely elevated in colorectal cancer, reference marker in metastatic disease |
| E514 | Cancer Ag 72-4 (CA 72-4) | Elevated in mucinous colorectal cancer |
| S464 | Carbohydrate Ag 19-9 (CA 19-9) | May be non-specifically elevated in colorectal cancer |
| C408 | Carcinoembryonic Ag (CEA) | Representative tumor marker for colorectal cancer |