Morphological characteristics of lymph nodes
| Morphology | Total | Benign | Malignant |
| Lymph nodes | 740 (100) | 270 (36.4) | 463 (62.5) |
| Shape | |||
| Triangular | 50 (6.78) | 43/50 (89.58) | 5/50 (10.42) |
| Round/oval | 687 (93.22) | 226/687 (33.09) | 457/687 (66.91) |
| Size | |||
| <10 mm | 311 (42.03) | 133/311 (43.46) | 173/311 (56.54) |
| ≥10 mm | 429 (57.97) | 137/429 (32.08) | 290/429 (67.92) |
| Margin | |||
| Defined | 668 (91.01) | 238/668 (35.84) | 426/668 (64.16) |
| Ill-defined | 66 (8.99) | 30/66 (46.88) | 34/66 (53.13) |
| Central vessel | |||
| Present | 102 (13.8) | 71/102 (71.00) | 29/102 (29.00) |
| Absent | 636 (85.95) | 199/636 (31.44) | 434/636 (68.56) |
| Echogenicity | |||
| Uniform | 664 (89.73) | 243/664 (36.82) | 417/664 (63.18) |
| Hyper- or hypoechoic | 73 (10.27) | 26/73 (36.62) | 45/73 (63.38) |
Data are presented as n (%) or n/N (%).