Thyroid nodule size calculated using ultrasound and gross pathology as predictors of cancer: A 23‐year retrospective study

Abstract

Thyroid nodule size is inversely related to malignancy risk, as larger nodules have lower malignancy rates. Nodule size estimated by US shows relatively good correlation with final pathologic size. However, thyroid nodules should undergo FNA regardless of size. If the FNA is not benign, nodule size should influence therapeutic decision making.