Contrast-Enhanced Ultrasound: An Effective Method for Noninvasive Diagnosis of Mummified Thyroid Nodules

Figure 2

(a, b) A 52-year-old female patient with well-defined cystic and solid nodules in the thyroid gland, and the maximum diameter of the nodules was 17 mm. Color Doppler flow imaging showed blood flow signals in the peripheral and internal solid parts. (c) Three years later, the nodule became smaller, the maximum diameter of the nodule was 9 mm and the margin of the nodule was irregular. (d) CEUS showed no enhancement in the nodules. Short arrows showed annular enhancement at the edges of the nodules. A clear boundary of the nodules could be seen by careful observation.