According to the American Heart Association, about 5 million Americans are diagnosed with valvular heart disease each year. What Is Valvular Heart Disease? Heart valve disease occurs when your heart's valves do not work the way the...

Pneumothorax (collapsed lung) is a medical condition in which either the lungs collapse on the whole or only a portion of the lungs collapse. In this condition, the air enters the area between the lungs and chest wall known as a plural stag. ...

Pneumothorax (collapsed lung) is a medical condition in which either the lungs collapse on the whole or only a portion of the lungs collapse. In this condition, the air enters the area between the lungs and chest wall known as a plural stag. ...