Characteristics and qualitative CT features of metastatic lymph nodes
| Variables (No. of Lymph Nodes) | Protocol A (n = 55) | Protocol B (n = 67) | Protocol C (n = 55) |
|---|---|---|---|
| Mean LN size (mm)a | 9.0 ± 3.09 | 9.85 ± 7.36 | 10.35 ± 5.27 |
| Negative findings on CT | 31 (56.4%) | 29 (43.3%) | 23 (41.8%) |
| Positive findings on CT | |||
| Calcification | 8 (14.5%) | 2 (2.9%) | 11 (20%) |
| Cystic/necrotic change | 15 (27.3%) | 15 (22.4%) | 13 (23.6%) |
| Extranodal extension | 7 (12.7%) | 10 (14.9%) | 10 (18.2%) |
| Level | |||
| II | 6 | 9 | 5 |
| III | 18 | 18 | 21 |
| IV | 31 | 39 | 29 |
↵a Size of the lymph nodes were measured in the minimum axis diameter.