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Repeat fine-needle aspiration (FNA) results after initial AUS/FLUS diagnosis. A second (consecutive) AUS/FLUS diagnosis was found in 38.5% of patients, while 42.7% of repeat FNAs were benign. AUS/FLUS, Atypia of Undetermined Significance/Follicular Lesion of Undetermined Significance (Bethesda Category III); SFN, suspicious for neoplasm (Bethesda Category IV); SFM, suspicious for malignancy (Bethesda Category V).
