Image of a mixed solid-cystic nodule. Note that the medial margin of the nodule cannot easily be distinguished from the rest of the parenchyma. In this case, the nodule was assigned 1 point for being mixed, 2 points for being hypoechoic, 0 points for being wider-than-tall, 0 points for having ill-defined margins, and 0 points for having no acoustic shadowing artifacts or echogenic foci. Therefore, the total score was 3 points and the risk level was classified as TR3.