Chronic obstructive pulmonary disease, which includes emphysema, chronic bronchitis and asthma, has become the fourth-leading cause of death – one of the only major chronic diseases that has seen an ...

The lungs consist of tiny air sacs called alveoli. Emphysema damages the alveoli and destroys lung tissue. Bullous emphysema (BE) refers to damaged alveoli that distend to form large air spaces, ...

Subcutaneous emphysema is the medical term for air becoming trapped in tissues beneath the skin. It is rare, but may occur as a result of trauma, injury, infection, or certain medical procedures.

Emphysema causes a chronic, hacking cough that’s often accompanied by shortness of breath and a tightness in the chest. Emphysema is a type of chronic obstructive pulmonary disease (COPD) that causes ...