Malignancy risk stratification in thyroid nodules with benign results on cytology: Combination of thyroid imaging reporting and data system and bethesda system
Annals of Surgical Oncology, ISSN: 1534-4681, Vol: 21, Issue: 6, Page: 1898-1903
2014
- 44Citations
- 37Captures
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Metrics Details
- Citations44
- Citation Indexes44
- 44
- CrossRef29
- Captures37
- Readers37
- 37
Article Description
Background: The indications of repeat fine-needle aspiration (FNA) for thyroid nodules with benign results of the Bethesda system were investigated. Methods: A total of 1,398 nodules were classified according to the Thyroid Imaging Reporting and Data System (TIRADS). TIRADS category 3 included nodules without solidity, hypoechogenicity or marked hypoechogenicity, microlobulated or irregular margins, microcalcifications, and taller-than-wide shape on ultrasonography (US). Categories 4a, 4b, 4c, and 5 included nodules with one, two, three or four, or five suspicious US features, respectively. The malignancy risks, and odds ratio (OR) with 95 % confidence interval (CI) were calculated. Analyses were performed for all nodules, nodules >10 mm, and nodules &10 mm. Results: Of 1.398 nodules, 43 (3.1 %) were malignanct. The malignancy risks of benign nodules with categories 3, 4a, and 4b were 0.7, 1.2, and 0.7 %, respectively, whereas those for nodules with categories 4c and 5 were 9.8 and 22.2 %, respectively. The ORs of nodules with categories 4c and 5 were 19.4 (95 % CI 5.0-76.2) and 50.6 (95 % CI 10.4-245.0), respectively. In nodules >10 mm, the malignancy risks of categories 4c and 5 were 2.7 and 20 %, respectively, and the ORs were 10.7 (95 % CI 1.2-93.7) and 236.1 (95 % CI 12.6-4426.4), respectively. In nodules 10 mm, the malignancy risks of categories 4c and 5 were 12.6 and 22.6 %, respectively, and the ORs were 10.1 (95 % CI 1.3-78.0) and 18.9 (95 % CI 2.1-168.9), respectively. Conclusions: Repeat US-guided FNA should be considered in benign thyroid nodules with three or more suspicious US features regardless of size. © 2014 Society of Surgical Oncology.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84902196187&origin=inward; http://dx.doi.org/10.1245/s10434-014-3556-2; http://www.ncbi.nlm.nih.gov/pubmed/24558069; http://link.springer.com/10.1245/s10434-014-3556-2; https://dx.doi.org/10.1245/s10434-014-3556-2; https://link.springer.com/article/10.1245/s10434-014-3556-2
Springer Science and Business Media LLC
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