Pneumothorax is the collection of air or gas in the space around the lungs.
Air around the lung; Air outside the lung
Pneumothorax may result from chest trauma, excess pressure on the lungs, or a lung disease such as COPD, asthma, cystic fibrosis, tuberculosis, or whooping cough. In some cases, the cause is unclear.
See also:
Baumann MH, Strange C, Heffner JE, Light R, Kirby TJ, Klein J, et al. Management of spontaneous pneumothorax. Chest. February 2001;199:590-602.
Murray J, Nadel J. Textbook of Respiratory Medicine. 3rd ed. Philadelphia, Pa: WB Saunders; 2000.
Marx J. Rosen’s Emergency Medicine: Concepts and Clinical Practice. 5th ed. St. Louis, Mo: Mosby; 2002.