Collapsed Lung | Atelectasis | Pneumothorax | MedlinePlus

P A collapsed lung happens when air enters the pleural space, the area between the lung and the chest wall. If it is a total collapse, it is called pneumothorax. If only part of the lung is affected, it is called atelectasis.
P Causes of a collapsed lung include
- Lung diseases such as pneumonia or lung cancer
- Being on a breathing machine
- Surgery on the chest or abdomen
- A blocked airway
P If only a small area of the lung is affected, you may not have symptoms. If a large area is affected, you may feel short of breath and have a rapid heart rate.
P A chest x-ray can tell if you have it. Treatment depends on the underlying cause.
P NIH: National Heart, Lung, and Blood Institute

