CEACAM5 and hepatocellular carcinoma: All 27 patients diagnosed with well-differentiated HCC, had a mean AFP level of 45.19±181.27 ng/L, mean CA19-9 level of 13.60±13.92 U/mL and mean CEA level of 2.45±1.41 ng/L with no patient testing positive for all the three biomarkers.