Summary
Fine needle aspiration of thyroid has been used for years in a multidisciplinary approach, to diagnose different entities, in preventing over or
under treatment of thyroid nodules. The widespread use of this methodology can be confirmed if thyroid fine needle aspiration is searched on
PubMed, which results in over 5000 papers. In this manuscript, we aimed to focus on pitfalls in the evaluation of thyroid aspirations, covering
cystic, inflammatory lesions, follicular lesions, oncocytic lesions, papillary carcinoma, and medullary carcinoma of thyroid.