Question: What is (are) Collapsed Lung ?
Answer: 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. 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 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. A chest x-ray can tell if you have it. Treatment depends on the underlying cause. NIH: National Heart, Lung, and Blood Institute
Source: MPlusHealthTopics