1. Fig. 4. Korean Thyroid Imaging Reporting and Data System 3 (low suspicion). None of nodules have any suspicious US features such as microcalcification, non-parallel orientation, and spiculated/microlobulated margins. A. Solid isoechoic nodule. Diagnosis: follicular variant papillary carcinoma. B. Predominantly solid and isoechoic nodule. Diagnosis: benign follicular nodule. C. Predominantly solid and hypoechoic nodule. Diagnosis: benign follicular nodule. D. Predominantly cystic and isoechoic nodule. Diagnosis: benign follicular nodule. US = ultrasonography
Fig. 4. Korean Thyroid Imaging Reporting and Data System 3 (low suspicion). None of nodules have any suspicious US features such as microcalcification, non-parallel orientation, and spiculated/microlobulated margins. A. Solid isoechoic nodule. Diagnosis: follicular variant papillary carcinoma. B. Predominantly solid and isoechoic nodule. Diagnosis: benign follicular nodule. . .
Korean J Radiol May-Jun;17(3):