Techniques of Thyroid Fine-Needle Aspiration
Thyroid nodules are common, approximately 2–22% of biopsied and resected thyroid nodules are malignant, and only a small percentage of them exhibit aggressive behavior. Fine-needle aspiration (FNA) is a standard test to determine proper management. The high-quality FNA samples obtained by technically skilled operators should be representative of the lesion for further interpretation. This chapter will emphasize on thyroid FNA techniques and pre-/post-management in detail, as well as the issues related to specimen adequacy.
KeywordsThyroid Nodule Fine-needle aspiration Biopsy Ultrasound Cytology Technique Conventional preparation
- 2.Degirmenci B, Haktanir A, Albayrak R, Acar M, Sahin DA, Sahin O, et al. Sonographically guided fine-needle biopsy of thyroid nodules: the effects of nodule characteristics, sampling technique, and needle size on the adequacy of cytological material. Clin Radiol. 2007;62:798–803.CrossRefGoogle Scholar
- 8.Choi YJ, Baek JH, Ha EJ, Lim HK, Lee JH, Kim JK, et al. Differences in risk of malignancy and management recommendations in subcategories of thyroid nodules with atypia of undetermined significance or follicular lesion of undetermined significance: the role of ultrasound-guided core-needle biopsy. Thyroid. 2014;24:494–501.CrossRefGoogle Scholar
- 13.Mahajan P, Sharma PR. Fine-needle aspiration versus non aspiration technique of cytodiagnosis in thyroid lesions. JK Sci. 2010;3:120–2.Google Scholar
- 18.Fischer AH, Clayton AC, Bentz JS, Wasserman PG, Henry MR, Souers RJ, et al. Performance differences between conventional smears and liquid-based preparations of thyroid fine-needle aspiration samples: analysis of 47 076 responses in the College of American Pathologists Interlaboratory Comparison Program in Non-Gynecologic Cytology. Arch Pathol Lab Med. 2013;137:26.CrossRefGoogle Scholar
- 20.Fine needle aspiration preparation of direct smears. 2007. http://www.pathlabsofark.com/fnadirectsmears.html