Table 1.

Distribution of Ultrasonography-Guided Fine Needle Aspiration Biopsy Results and Final Histopathology Results for Thyroid Nodules ≥4 cm

FNAB, fine needle aspiration biopsy; NH, nodular hyperplasia; PTC, classical papillary carcinoma; FA, follicular adenoma; PTCf, papillary carcinoma follicular variant; FC, follicular carcinoma; MC, medullary carcinoma; HA, Hürthle cell adenoma; HC, Hürthle cell carcinoma; PC, poorly differentiated carcinoma; PTCo, papillary carcinoma oxyphil cell variant; PTCd, papillary carcinoma diffuse sclerosing variant; PTCs, papillary carcinoma solid variant; PTCi, papillary carcinoma with insular pattern; PTCc, papillary carcinoma columnar cell variant; PTCt, papillary carcinoma tall cell variant; AC, anaplastic carcinoma.