Causes of misdiagnoses by thyroid fine-needle aspiration cytology (FNAC): our experience and a systematic review

FNA is a simple, safe, cost-effective and accurate diagnostic tool for the initial screening of patients with thyroid nodules. The aims of this study were to determine the diagnostic utility of FNAC performed in our institution, assess the cytomorphologic features that contribute to diagnostic errors and propose improvement measures.A total of 2781 FNACs were included in the study, and 1122 cases were compared with their histological diagnoses....