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[Tumor markers in rectal cancer].

The paper is concerned with an assay of tumor markers in rectal cancer patients. The carcinoembryonic antigen has been shown to be the most specific marker characterizing the degree of tumor dissemination, particularly in metastatic liver lesion. Preliminary results suggest a possibility of the use of the determination of the ferritin level for this purpose whereas the use of the marker like alpha-fetoprotein in this group of patients is not desirable.