Table 1. Accessibility to nodal stations with different sampling techniques.
| Mediastinoscopy | EBUS-TBNA | EUS-FNA | |
| Supraclavicular zone | |||
| 1 | ± | –- | – |
| Superior mediastinal nodes | |||
| 2R | + | + | – |
| 2L | + | + | + |
| 4R | + | + | – |
| 4L | + | + | + |
| 3a | – | – | – |
| 3p | _ | ±# | ±# |
| Aortic nodes | |||
| 5 | – | – | –# |
| 6 | – | – | –# |
| Inferior mediastinal nodes | |||
| 7 | + | + | + |
| 8 | – | – | + |
| 9 | – | – | + |
| N1 nodes | |||
| 10 Hilar | ± | + | ±# |
| 11 Interlobar | – | + | – |
| 12 Lobar | – | + | – |
EBUS-TBNA: endobronchial ultrasound-transbronchial needle aspiration; EUS-FNA: endoscopic ultrasound-fine needle aspiration. +: accessible; –: inaccessible; ±: may be accessible. #: casuistic reports that it is feasible.