CEACAM5 and colorectal carcinoma: Despite showing a trend toward higher levels in the CRC group (6.1 ± 3.5 ng/mL) compared to the benign (4.3 ± 2.7 ng/mL) and control groups (2.8 ± 1.3 ng/mL), CEA did not reach statistical significance (p = 0.198).