Emphysema falls under the umbrella of chronic obstructive pulmonary disease (COPD). There are three main types of emphysema, and these differ according to which distinct lung parts, or lobules, they ...

Surgical emphysema is another term for subcutaneous emphysema. It occurs when air or gas enters the subcutaneous tissue, which is the deepest layer of the skin. People can develop surgical emphysema ...

Air trapping in emphysema occurs when the lung’s tiny air sacs become stretched and the airways narrow, making it difficult to catch your breath. Medications can help open up the airways and improve ...