Diagnostic value of cytology, thyroglobulin, and combination of them in fine-needle aspiration of metastatic lymph nodes in patients with differentiated thyroid cancer
Open Access
- 1 November 2019
- journal article
- review article
- Published by Ovid Technologies (Wolters Kluwer Health) in Medicine
- Vol. 98 (45), e17859
- https://doi.org/10.1097/md.0000000000017859
Abstract
Background: To investigate the diagnostic performance of cytology (fine-needle aspiration cytology [FNAC]), thyroglobulin (fine-needle aspiration thyroglobulin [FNA-Tg]), and combination of them in the washout of fine-needle aspiration for those patients who have suspicious metastatic lymph nodes of differentiated thyroid cancer. Methods: Databases, including PubMed, EMbase, Web of Science and Cochrane Library were searched up to June 2019. The quality assessment of diagnostic accuracy scale-2 was used to conduct quality assessments, and publication bias was evaluated using the Deeks funnel plot. STATA version 14.0 was used to perform the meta-analysis. Results: A total of 2257 patients with 2786 samples of suspicious metastatic lymph nodes of differentiated thyroid cancer were included in the meta-analysis. The results showed that the diagnostic value for detecting lymph node metastasis of differentiated thyroid cancer was as follows: combination of FNAC and FNA-Tg > FNA-Tg > FNAC. All differences of superiority among them are statistically significant. The sensitivity of the combination was 0.968 (95% confidence interval [CI]: 0.942–0.983), the specificity was 0.932 (95% CI: 0.856–0.969), the diagnostic score was 6.036 (95% CI: 4.892–7.181), the diagnostic odds ratio was 418.424 (95% CI: 133.167–1314.729), and the score of summary receiver operating characteristic was 0.99 (95% CI: 0.97–0.99). Conclusions: The combination of FNAC and FNA-Tg is an excellent procedure in diagnosis of lymph nodes metastasis of patients with differentiated thyroid cancer, which should be highly recommended.Keywords
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