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  • Title: A comparative analysis of the serum levels of NCC-ST-439, CEA and CA19-9 in patients with colorectal carcinoma.
    Author: Iemura K, Moriya Y.
    Journal: Eur J Surg Oncol; 1993 Oct; 19(5):439-42. PubMed ID: 8405479.
    Abstract:
    To investigate the usefulness of NCC-ST-439 (ST439) as a new tumor marker in colorectal cancer, we compared its serum level with the serum levels of CEA and CA19-9. The serum levels of ST439, CEA and CA19-9 from 168 patients were evaluated, of which 124 were primary cases and 44 were recurrent. ST439 was elevated in 31.5% in primary cases and 52.3% in newly-discovered carcinoma patients with confirmed recurrent cases. Following resection of the tumor, ST439 levels decreased rapidly. Similar trends in serial CEA and CA19-9 levels were found. While CEA is more sensitive for the detection of colorectal carcinomas than the other two markers, ST439 is sensitive in the detection of localized carcinomas and recurrent cases with localized lesions or liver metastasis. The results indicate that ST439 is a useful tumor marker not only for diagnosing primary carcinomas, but also for the detection of recurrent cases.
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