Do medullary thyroid carcinoma patients with high calcitonin require bilateral neck lymph node clearance? A case report

Figure 2 Ultrasound images. A/E: Ultrasound suggested enlargement of cervical lymph nodes; B-D/F-H: Further contrast-enhanced ultrasound suggested uneven enhancement of enlarged lymph nodes from the medulla to cortex, with slightly lower medulla enhancement, suggesting that enlarged lymph nodes were mostly reactive hyperplasia.