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Original scientific paper
https://doi.org/10.20471/acc.2019.58.02.17

Malignancy Risk with Atypia of Undetermined Significance Finding on Thyroid Nodule FNA: Clinical Experience from a Tertiary Institution

Josip Staničić ; Department of Oncology and Nuclear Medicine, Sestre milosrdnice University Hospital Centre, Zagreb, Croatia
Davor Kust ; Department of Oncology and Nuclear Medicine, Sestre milosrdnice University Hospital Centre, Zagreb, Croatia
Neven Mateša ; Department of Oncology and Nuclear Medicine, Sestre milosrdnice University Hospital Centre, Zagreb, Croatia
Zvonko Kusić ; Department of Oncology and Nuclear Medicine, Sestre milosrdnice University Hospital Centre, Zagreb, Croatia

Fulltext: english, pdf (199 KB) pages 333-336 downloads: 80* cite
APA 6th Edition
Staničić, J., Kust, D., Mateša, N. & Kusić, Z. (2019). Malignancy Risk with Atypia of Undetermined Significance Finding on Thyroid Nodule FNA: Clinical Experience from a Tertiary Institution. Acta clinica Croatica, 58 (2.), 333-336. https://doi.org/10.20471/acc.2019.58.02.17
MLA 8th Edition
Staničić, Josip, et al. "Malignancy Risk with Atypia of Undetermined Significance Finding on Thyroid Nodule FNA: Clinical Experience from a Tertiary Institution." Acta clinica Croatica, vol. 58, no. 2., 2019, pp. 333-336. https://doi.org/10.20471/acc.2019.58.02.17. Accessed 23 Oct. 2020.
Chicago 17th Edition
Staničić, Josip, Davor Kust, Neven Mateša and Zvonko Kusić. "Malignancy Risk with Atypia of Undetermined Significance Finding on Thyroid Nodule FNA: Clinical Experience from a Tertiary Institution." Acta clinica Croatica 58, no. 2. (2019): 333-336. https://doi.org/10.20471/acc.2019.58.02.17
Harvard
Staničić, J., et al. (2019). 'Malignancy Risk with Atypia of Undetermined Significance Finding on Thyroid Nodule FNA: Clinical Experience from a Tertiary Institution', Acta clinica Croatica, 58(2.), pp. 333-336. https://doi.org/10.20471/acc.2019.58.02.17
Vancouver
Staničić J, Kust D, Mateša N, Kusić Z. Malignancy Risk with Atypia of Undetermined Significance Finding on Thyroid Nodule FNA: Clinical Experience from a Tertiary Institution. Acta clinica Croatica [Internet]. 2019 [cited 2020 October 23];58(2.):333-336. https://doi.org/10.20471/acc.2019.58.02.17
IEEE
J. Staničić, D. Kust, N. Mateša and Z. Kusić, "Malignancy Risk with Atypia of Undetermined Significance Finding on Thyroid Nodule FNA: Clinical Experience from a Tertiary Institution", Acta clinica Croatica, vol.58, no. 2., pp. 333-336, 2019. [Online]. https://doi.org/10.20471/acc.2019.58.02.17

Abstracts
The Bethesda System for Reporting Thyroid Cytopathology from 2009 introduced a new category in thyroid nodule fine-needle aspiration (FNA) findings named atypia of undetermined significance (AUS), which usually appears in around 5% of FNA findings. Our study aimed to
assess the utility of AUS finding in determining the risk of malignancy in thyroid nodules. In our study, 160 patients with AUS finding on initial FNA were regularly followed-up. Total and specific malignancy rates were calculated after receiving histopathologic confirmation or histopathologic/cytologic exclusion of malignancy. Eventually 80 (50%) patients were referred to surgery, with malignancy rate of 37.5% on histopathology. Another 52 (32.5%) patients were confirmed to have benign nodules on repeat FNA. After combining results obtained from histopathologic reports with those obtained from cytologic follow-up, total malignancy rate was 22.72%. However, malignancy was confirmed
in only one (5.26%) of 19 patients with AUS finding on repeat FNA with surgical and histopathologic follow-up. In conclusion, FNA is an extremely useful tool for clinicians to discriminate patients to be referred to surgery and those that can be followed-up safely without the need for further invasive procedures.

Keywords
Biopsy, fine-needle; Thyroid nodule; Thyroid neoplasms; Cytodiagnosis; Adenocarcinoma, follicular

Hrčak ID: 224454

URI
https://hrcak.srce.hr/224454

[croatian]

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