Pulmonary Medicine is the branch of medicine that deals with the causes, diagnosis, prevention and treatment of diseases affecting the lungs.  Pulmonary Medicine deals with many diseases and conditions, including: ARDS (acute respiratory distress syndrome), asthma, COPD (chronic obstructive pulmonary disease), cystic fibrosis, interstitial lung disease, lung cancer, lung transplants, and various other conditions. Pulmonary Medicine is also sometimes called pulmonology which is the science concerned with the anatomy, physiology, and pathology of the lungs.