New breast cancer marker "better than CEA":
This article was originally published in Clinica
The serum concentration of a fragment of cytokeratin 19 (CYFRA 21-1) may be one of the most reliable tumour markers for breast cancer recurrence. Researchers from the Osaka City University Hospital, Japan, report in Cancer (September 15th) that CYFRA 21-1 was elevated in patients with later stage and recurrent breast tumours, but not in patients with other breast disorders. In a comparison with other breast cancer markers, CYFRA 21-1's sensitivity was as high as that of CA 15-3 and better than that of carcinoembryonic antigen.