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

Figure 5

(a) This thyroid nodule had clear margin, and its maximum diameter was 15 mm, which was classified as TI-RADS 3. (b) Five years later, the patient reexamined the thyroid and was found that the nodule had become smaller and more solid, with irregular margin, microcalcifications at the edge, and a taller-than-wide shape, which could be classified as TI-RADS 5. (c) CEUS showed that the contrast mode was enhanced from the periphery to interior. It was uneven with low enhancement, and the margin was not very clear, so it was difficult to distinguish it from a PTC. (d–f) SonoLiver software was used to analyze the contrast video, and the time intensity curve conformed to the performance of mummified nodules.