Value of Serum Alpha-Fetoprotein and Ferritin in the Diagnosis of Hepatocellular Carcinoma

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Abstract
Alpha-fetoprotein (AFP) and ferritin in the serum were determined by radioimmunoassay and enzyme immunoassay, respectively, in 224 healthy subjects, 55 patients with benign hepatic disease and 44 patients with hepatocellular carcinoma (HCC). The AFP levels in the serum were significantly higher in patients with HCC than in healthy subjects and in patients with benign hepatic disease, but this level was not a satisfactory indicator of small HCC since it was elevated in only 75.0% of the patients with a tumor of less than 3.0 cm in its greatest diameter. Although serum ferritin was elevated in only 56.8% of the patients with HCC, the combination of these two tests raised the diagnostic rate of HCC from 65.9% by serum AFP measurement alone to 88.6% with no appreciable decrease in the specificity for HCC. In particular, it raised the diagnostic rates of lesions of less than 3.0 cm in the greatest diameter from 75.0% by measuring AFP alone to 100%. Thus the combination of AFP and ferritin measurement in the serum is useful for the early detection of HCC.