| Indication for surgery | Final Histo-pathology | ||
| Staging for NSCLC | 6 | 3 | N2 disease |
| 3 | No N2 disease | ||
| Suspected lymphoma | 3 | 1 | Lymphoma |
| Suspected sarcoidosis | 1 | 1 | TB |
| Mediastinal lymphadenopathies unknown origin | 2 | 3 | Granulomatous inflammation, one of which is equal to saroidosis |
| 1 | Reactive lymph nodes |