The Value of Peripheral Enhancement Pattern for Diagnosing Thyroid Cancer Using Contrast-Enhanced Ultrasound

Figure 1

A peripheral regular high-enhancement ring of a thyroid nodule on CEUS. (a) Gray-scale US showed a heterogeneous nodule with a defined margin and a regular shape in the right lobe of the thyroid. (b) During CEUS, a heterogeneous high-enhancement pattern was found in the nodule (arrow); meanwhile, a regular high-enhancement ring (arrowhead) was displayed around the nodule. The pathology from surgery was thyroid adenoma.

(a)

(b)