Table 1.
Conventional qualitative features for diagnosing metastatic lymph nodes.
| Features | Total LNs(157) | Cervical root artifact affected LNs (59) | ||
|---|---|---|---|---|
| Non-metastatic LNs (81) | Metastatic LNs (76) | Non-metastatic LNs (27) | Metastatic LNs (32) | |
| Size (mm) | 8.4 ± 1.3 | 14.2 ± 2.7 | 7.1 ± 0.8 | 11.3 ± 1.2 |
| Location | ||||
| II | 30 (37.0%) | 5 (6.6%) | 0 (0%) | 0 (0%) |
| III | 17 (21.0%) | 7 (9.2%) | 0 (0%) | 0 (0%) |
| IV | 9 (11.1%) | 20 (26.3%) | 2 (7.4%) | 4 (12.5%) |
| V | 0 (0.0%) | 1 (1.3%) | 0 (0%) | 0 (0%) |
| VI | 25 (30.9%) | 43 (56.6%) | 25 (92.6%) | 28 (87.5%) |
| Negative findings | 74 (91.4%) | 23 (30.3%) | 22 (81.5%) | 17 (53.1%) |
| Positive findings | 7 (8.6%) | 53 (69.7%) | 5 (18.5%) | 15 (46.9%) |
| Size >10 mm | 1 (1.2%) | 22 (28.9%) | 0 (0.0%) | 3 (9.4%) |
| Abnormal enhancement | 6 (7.4%) | 51 (67.1%) | 5 (18.5%) | 15 (46.9%) |
| Calcification | 0 (0.0%) | 7 (9.2%) | 0 (0.0%) | 1 (3.1%) |
| Cystic change | 0 (0.0%) | 8 (10.5%) | 0 (0.0%) | 0 (0.0%) |
| Extra nodal extension | 0 (0.0%) | 1 (1.3%) | 0 (0.0%) | 0 (0.0%) |
Size is expressed as mean ± standard deviation. Other data are numbers of lymph nodes and parentheses indicate the proportion.
LNs, lymph nodes.