Carcinoembryonic antigen was initially known as tumor specific antigen and had a potential diagnostic value in the detection of digestive tract malignancies. However, subsequent studies showed CEA and CEA-like antigen present inbenign disease, particul1ary in liver. We had collected sera from 58 patients who had liver scan and later were diagnosed clinically and histologically as liver disease. We estimated CEA values and correlations were made with liver function tests in liver cirrhosis cases. The results: 1) The raised plasma carcinoembryonic antigen level were found in 13 (68.4%) of 19 patients cirrhosis, 5(27.8%) of 18 patients in hepatoma, 5(71%) of 7 patients in chronic active hepatitis, all 3 patients in liver abscesses, 2(66.7%) of 3 patients in liver ablscesses, 2(66.7%) of 3 patients in obstructive biliary disease and none in each one patient of traumatic liver hematoma, subphrenic abscess and clonorchiasis. 2) There is no linear correlation between carcinoembryodic antigen leveland liver function tests including serum bilirubin, alkaline phosphatase, SGOT and prothrombin time in liver patients.