L1:
L2:
L3:
Composition
Cystic or almost completely cystic (0 points)
Spongiform (0 points)
Mixed cystic and solid (1 point)
Solid or almost completely solid (2 points)
Echogenicity
Anechoic (0 points)
Hyperechoic or isoechoic (1 point)
Hypoechoic (2 points)
Very hypoechoic (3 points)
Shape
Wider-than-tall (0 points)
Taller-than-wide (3 points)
Margin
Smooth (0 points)
Ill-defined (0 points)
Lobulated or irregular (2 points)
Extra-thyroidal extension (3 points)
Echogenic Foci
None or large comet-tail artifacts (0 points)
Macrocalcifications (1 point)
Peripheral (rim) calcifications (2 points)
Punctate echogenic foci (3 points)
Total Score: 0
