Abstract
To date the fine needle aspiration (FNA) is the main diagnostic test to assess the malignancy of a thyroid nodule. However it is inconclusive in the cases when the nodule is diagnosed as of follicular variant (FV). For being a non-invasive method, Power and Duplex-Doppler ultrasonography (US) is the goal of many studies aiming to establish thyroid nodule malignancy criteria through nodule…