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논문 기본 정보

자료유형
학술저널
저자정보
최영식 (고신대학교) 이혜원 (고신대학교 의과대학 내과학교실) 옥소영 (고신대학교) 김부경 (고신대학교) 권수경 (고신대학교) 김정훈 (고신대학교) 정상봉 (동의과학대학교)
저널정보
고신대학교 의과대학 고신대학교 의과대학 학술지 고신대학교 의과대학 학술지 제33권 제1호
발행연도
2018.1
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1 - 11 (11page)

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Objectives: Ultrasound-guided fine-needle aspiration (FNA) is routinely used in the evaluation of thyroid nodules. However, it has several pitfalls, as has been noted in nondiagnostic and indeterminate cases. This study aims to investigate the value of BRAFV600E mutation co-testing in FNA cytology. Method: A total of 310 patients underwent BRAFV600E mutation co-testing in FNA cytology on thyroid nodules between June 2013 and June 2014. Of the 310 patients, 69 patients who had undergone a surgery for thyroid nodules were included in this study. The presence of the BRAFV600E mutation was determined by allele-specific polymerase chain reaction amplification of exon 15 of the BRAF gene. Results: Of 69 cases, 33 (47.8%) were BRAFV600E mutation positive. The BRAFV600E mutation was not significantly associated with high-risk features such as tumor size, lymph node metastasis, and pathological stage. The respective diagnostic performance of FNA ( P = 0.02), BRAFV600E mutation ( P = 0.03), and ultrasonographic ( P = 0.00) findings was statistically significant. The sensitivity, specificity and positive predictive value of FNA was 64.9%, 83.3%, and 94.8%. The sensitivity, specificity and positive predictive value of BRAFV600E mutation was 56.1%, 91.7%, and 96.9% and the US features was 91.2%, 91.7%, and 98.1% respectively. However, sensitivity of FNA with BRAFV600E mutation (77.2%) was lower than FNA with US (92.9%) and combination all together (92.9%). Conclusion: In this study, we found that US features were the most useful in preoperative differential diagnosis of thyroid nodules. BRAFV600E mutation co-testing in FNA cytology was also useful for diagnosis of thyroid tumors.

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