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[Value and significance of CEA in the monitoring of patients with neoplasms and in the evaluation of their cure].

An assessment was made of the determination of carcinoembryonic antigen (CEA) in patients with tumours and non-neoplastic diseases. Positivity in relation to hepatic cirrhosis and stasis was noted in only 3.9% of non-oncological patients, whereas this figure rose to 28.8% in those with tumors, with higher frequencies in forms involving the intestine, lung, liver, and stomach. Variations in the result of the examination were noted in relation to the progress of the disease, and also in relation to chemotherapy in some cases. The results of the investigation indicate that CEA is of little use as an early diagnosis test. Its importance lies in its indication of the effectiveness of treatment, and as an early sign of the approach of recurrences.