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| Lymph node | Elliptical (%) | Circular (%) |
|---|---|---|
| Sternal | 37a) (20%) | 151b) (80%) |
| Cranial mediastinal | 86b) (20%) | 337b) (80%) |
| Left tracheobronchial | 38 (41%) | 55 (59%) |
| Middle tracheobronchial | 78 (79%) | 21 (21%) |
| Right tracheobronchial | 33 (40%) | 50 (60%) |
| Intercostal | 1 (6%) | 15 (94%) |
a) Includes one bilobar lymph node; b) Includes one lymph node with an irregular margin.
