Thyroid fine-needle aspiration

Abstract

This chapter is focused on the discussion and review of cytomorphological features of benign and malignant lesions in thyroid FNA. Thyroid FNA is commonly utilized in the follow-up of thyroid nodules. Thyroid FNA is very useful to distinguish between patients with malignant, or possibly malignant, thyroid nodules requiring surgical treatment and those with benign nodules that can be followed up clinically or treated medically. Other indications are evaluation of diffuse goiter, follow-up of individuals exposed to irradiation of the head and neck, and therapeutic drainage of cystic lesions.