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Additional diagnostic value of tumor markers in cytological fluid for diagnosis of non-small-cell lung cancer

Authors
 Jin Hur ; Hye-Jeong Lee ; Byoung Wook Choi ; Hye Sun Lee ; Kyung Young Chung ; Joo-Hang Kim ; Joon Chang ; Se Kyu Kim ; Hee Yeong Kim ; Yoo Jin Hong ; Young Jin Kim ; Ji Eun Nam 
Citation
 BMC Cancer, Vol.12 : 392, 2012 
Journal Title
 BMC Cancer 
ISSN
 1471-2407 
Issue Date
2012
Abstract
BACKGROUND: Cytological fluid from a needle aspiration biopsy (NAB) is obtained directly from tumor tissue, therefore many biomarker candidates will be present in high concentrations. The aim of this study was to prospectively assess and validate the tumor markers CYFRA 21-1, CEA, and SCC in cytological fluid obtained from NAB samples to determine if they improved the performance of NAB for diagnosing non-small cell lung cancer (NSCLC). METHODS: A total of 194 patients (M:F = 128:66, mean age 63.7 years) with suspected malignant pulmonary lesions were prospectively enrolled and underwent percutaneous NAB. Levels of CYFRA 21-1, CEA, and SCC were measured by immunoassay in serum and cytological fluid obtained during aspiration biopsy. Cut-off values to determined malignancy were 3.3 ng/mL in serum and 15.7 ng/mL in cytological fluid for CYFRA 21-1, 5 ng/mL and 0.6 ng/mL for CEA, and 2 ng/mL and 0.86 ng/mL for SCC. RESULTS: Of 194 patients, 139 patients (71.6%) had NSCLC and 55 (28.4%) had benign lesions. Sensitivity increased significantly for NAB combined with cytological tumor markers compared with NAB alone (CYFRA 21-1: 95% versus 83.5%, p < 0.001, CEA: 92.1% versus 83.5%, p = 0.002, SCC: 91.4% versus 83.5%, p = 0.003). Accuracy improved significantly for NAB combined with cytological CYFRA 21-1 compared with NAB alone (95.9% versus 88.1%, p < 0.001). The area under curve (AUC) of NAB with cytological CYFRA 21-1 was significantly larger than for NAB alone (0.966 versus 0.917, p = 0.009). CONCLUSION: Of the tested tumor markers, cytological fluid measurements of CYFRA 21-1 improved the diagnostic performance of NAB for NSCLC.
URI
http://ir.ymlib.yonsei.ac.kr/handle/22282913/89776
DOI
10.1186/1471-2407-12-392
Appears in Collections:
1. 연구논문 > 1. College of Medicine > Yonsei Biomedical Research Center
1. 연구논문 > 1. College of Medicine > Dept. of Internal Medicine
1. 연구논문 > 1. College of Medicine > Dept. of Thoracic & Cardiovascular Surgery
1. 연구논문 > 1. College of Medicine > Dept. of Radiology
Yonsei Authors
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