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  • Title: The role of fine-needle aspiration biopsy in the management of patients with thyroid nodules.
    Author: Zagorianakou P, Malamou-Mitsi V, Zagorianakou N, Stefanou D, Tsatsoulis A, Agnantis NJ.
    Journal: In Vivo; 2005; 19(3):605-9. PubMed ID: 15875783.
    Abstract:
    Fine-needle aspiration biopsy (FNAB) of the thyroid gland is the most cost-effective examination in the evaluation of thyroid nodules. The aim of this study was to present our experience from all patients who underwent thyroid FNA in the University Hospital of Ioannina, Greece, in the period 1993-2003, and its value in the diagnostic management of patients with thyroid nodules. FNA was performed in 900 patients of whom 753 were females and 147 males. The cases were classified according to diagnosis into five groups: benign/negative 628, primary carcinoma 28, metastatic carcinoma 5, suspicious/indeterminate 60 and non-diagnostic 179. Cytological findings were compared with histopathological findings and the statistical analysis in our data yielded the following results: sensitivity 92.1%, specificity 93.2%. These results are in accordance with the already published data in the international literature. In cases of differential diagnosis between adenomatoid hyperplasia and follicular neoplasia, four cases were diagnosed as hot nodules. In the benign group, three cases were diagnosed as nodular hyperplasia with cystic degeneration on FNA, but, after surgical treatment, histologically were diagnosed as papillary carcinomas. In the group of suspicious/indeterminate, two cases were diagnosed as suspicious for follicular neoplasia on FNA and, after surgical treatment, were diagnosed histopathologically as medullary carcinomas. In conclusion, we suggest that routine measurement of serum calcitonin is useful and mandatory in the detection of medullary carcinoma among patients with nodular thyroid diseases. Taking into consideration the clinical data can minimize false-positive and false-negative rates. We conclude that FNA is an effective screening test in the evaluation of the necessity for surgical treatment in patients with thyroid nodules.
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