Endocrine Abstracts

Introduction: ‘Atypia of undetermined significance (AUS) or follicular lesion of undetermined significance’ category is established by The Bethesda System for Reporting Thyroid Cytopathology because of the necessity to report those thyroid fine-needle aspiration (FNA) results that are not easily classified into the benign, suspicious or malignant categories. In most cases, a repeated FNA results in a more definitive interpretation. Estimated risk of malignancy for an...