Respiratory Medicine: Otherwise known as 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, occupational lung disease, pulmonary hypertension, pulmonary tuberculosis, sarcoidosis of the lungs, and SARS (severe acute respiratory syndrome).