Fig. 2
A 61-year-old man with papillary thyroid carcinoma in the right lobe of thyroid. The long diameter and short diameter of one lymph node at ipsilateral level VI were 4.4 mm and 4.3 mm (a). S/L ratio was 0.977. Emean, Emax and ESD were 23.9 kPa, 30.8 kPa and 4.6 kPa respectively (b). Gray-ultrasound score and combination score were 2 and 5 respectively. This lymph node was confirmed to be metastatic by pathological diagnosis (c, original magnification × 40, and d, original magnification × 100)