BRAF status of the matched surgical tumor tissue showed a high concordance with that of residual FNA samples (κ = 0.789; P < .001) (eFigure 5 in the Supplement), except 1 patient with FLUS, whose residual FNA biopsy tissue was negative for the BRAF V600E variant but whose surgical specimen was positive, and 2 patients with SFM and 1 patient with malignant PTC, whose residual FNA biopsies were positive for the BRAF V600E variant tissue but whose surgical specimens were negative. The gene discussed is BRAF; the disease is neoplasm.