title: Clinical evaluation of CYFRA 21-1 in malignant pleural fluids.
abstract: The diagnostic value of the novel tumor marker CYFRA 21-1 in malignant pleural fluid was assessed in comparison to carcinoembryonic antigen (CEA). CYFRA 21-1 and CEA were measured in pleural fluid obtained from patients with 108 malignant and benign diseases. The levels of pleural fluid CYFRA 21-1 in malignant diseases (median: 84.5 ng/ml) were statistically higher than those in benign diseases (median: 13.9 ng/ml; p < 0.01). The CYFRA 21-1 test was able to discriminate significantly between squamous cell lung cancer and pneumonia (p < 0.01), while pleural fluid CEA levels could not. Receiver operating characteristic (ROC) curve analysis showed that the CYFRA 21-1 test has an advantage over CEA because of its higher specificity. These results indicate that measurement of CYFRA 21-1 in pleural fluid is a new tool, in addition to cytologic examination, to discriminate between malignant and benign diseases.
authors.affiliation: Department of Internal Medicine, University of Tsukuba, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Satoh
authors.forename: M
authors.initials: M
authors.lastname: Sumi
authors.forename: H
authors.initials: H
authors.lastname: Yagyu
authors.forename: H
authors.initials: H
authors.lastname: Ishikawa
authors.forename: T
authors.initials: T
authors.lastname: Suyama
authors.forename: T
authors.initials: T
authors.lastname: Naitoh
authors.forename: T
authors.initials: T
authors.lastname: Saitoh
authors.forename: S
authors.initials: S
authors.lastname: Hasegawa
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000911:Antibodies, Monoclonal; D014408:Biomarkers, Tumor / Q000097:blood*; D002272:Carcinoembryonic Antigen / Q000097:blood*; D004797:Enzyme-Linked Immunosorbent Assay / Q000379:methods; D005260:Female; D006801:Humans; D007633:Keratins / Q000097:blood*; D008297:Male; D008875:Middle Aged; D016066:Pleural Effusion, Malignant / Q000097:blood* / Q000276:immunology; D012372:ROC Curve
chemical_list: D000911:Antibodies, Monoclonal; D014408:Biomarkers, Tumor; D002272:Carcinoembryonic Antigen; D007633:Keratins