Outcome of Thyroid Nodules Characterized as Atypia of Undetermined Significance or Follicular Lesion of Undetermined Significance and Correlation With Ultrasound Features and <i>BRAF</i>^V600E Mutation Analysis

Abstract

The malignancy rate of AUS/FLUS nodules in our study cohort was higher than previously reported. Nodules with suspicious features on ultrasound had a higher malignancy rate than did those with indeterminate features on ultrasound. The malignancy rate differed according to histologic subcategory; therefore, management of AUS/FLUS nodules should be tailored according to histologic subcategory.