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  • Title: The diagnostic importance of CEA and CA 19-9 for the early diagnosis of pancreatic carcinoma.
    Author: Nazli O, Bozdag AD, Tansug T, Kir R, Kaymak E.
    Journal: Hepatogastroenterology; 2000; 47(36):1750-2. PubMed ID: 11149048.
    Abstract:
    BACKGROUND/AIMS: CA 19-9 and CEA were evaluated for their specificity and sensitivity in the early diagnosis of pancreatic carcinoma. METHODOLOGY: This prospective study included 40 patients with pancreatic carcinoma. A control group of 60 patients were divided into two subgroups as upper gastrointestinal system malignancies and benign pancreatic disorders. CEA and CA 19-9 levels were measured in all the patients. RESULTS: When the reference value of CA 19-9 was accepted as 74 U/mL, the specificity was 100% when pancreatic carcinoma was compared with benign disorders of the pancreas, but it's specificity for upper gastrointestinal malignancies was 60-90%. When the reference value of CEA was increased, the sensitivity had been decreased but the specificity had been increased when compared with the control group. If the reference value of CEA was accepted as 5 ng/mL, the specificity was 100% when pancreatic carcinoma was compared with acute or chronic pancreatitis, but it is less specific for the differential diagnosis of pancreatic carcinoma from the upper gastrointestinal malignancies. CONCLUSIONS: With the progression of the pancreatic carcinoma, serum CEA level and the specificity of CEA were elevated similar to that of CA 19-9. However, the elevation of CEA specificity when compared with the control group was lower than the specificity of the CA 19-9 and the sensitivity of CA 19-9 was superior to that of CEA for pancreatic carcinoma. The level of CA 19-9 was increased with the development of early pancreatic cancer and this elevation steadily continued with the progression of the cancer.
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