station 4L is bordered by aortic arch and left pulmonary artery
- related: Chest lymph nodes and where to find them
- tags: #permanent
- upper border: aortic arch (yellow)
- lower border: pulmonary artery (blue)
- medial border: left margin of trachea
EBUS
- on EBUS, navigate to right above carina or immediately in the left main bronchus and look at 10-12 o'clock
- as you come up, look for intersection between pulmonary artery and aorta
- PA will be to the left on screen (inferior) and aorta on the right