Image of a hyperechoic nodule. Note the heterogeneous echotexture of the thyroid parenchyma, especially the presence of nodules with well-defined margins and echogenicity greater than that of the rest of the parenchyma. The nodule pictured was solid (2 points), hyperechoic (1 point), and wider-than-tall (0 points), with smooth margins (0 points) and without acoustic shadowing artifacts or echogenic foci (0 points). Therefore, the total score was 3 points and the risk level was classified as TR3.