Table 3.
Sonographic features of benign and malignant lymph nodes (LNs)*
| Characteristic | Benign | Malignant | P value |
|---|---|---|---|
| Included lymph nodes | 71 (53.8) | 61 (46.2) | |
| Sonographic features | |||
| Size, ≥1 cm | 41 (57.8) | 54 (88.5) | < 0.0001 |
| Shape: round | 28 (39.4) | 36 (59.0) | 0.025 |
| Margin, distinct | 67 (94.4) | 60 (98.4) | 0.231 |
| Echogenicity: | |||
| Homogeneous | 52 (88.7) | 38 (62.3) | < 0.0001 |
| Heterogeneous | 8 (11.3) | 23 (37.7) | |
| Central hilar structure, present | 48 (67.6) | 32 (52.5) | 0.076 |
| Coagulation necrosis sign, present | 1 (1.4) | 6 (9.8) | 0.031 |
Data presented as n (%) unless otherwise indicated
*Only cytologically and pathologically confirmed malignant and benign LNs were included, except for lymphoma, amyloidosis, and non-diagnostic specimens