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Article Outline
The lungs are subject to a number of disorders, with symptoms that may include difficulty in breathing, chest pain, coughing, and wheezing. Lung cancer, most commonly caused by smoking tobacco, is the deadliest lung disease, and each year it kills more Americans than any other kind of cancer. Smoking tobacco may also lead to emphysema, which is caused by wholesale destruction of alveoli. Other lung disorders include pneumonia, or inflammation of the lungs, which is usually caused by viruses or bacteria; pneumothorax, or collapse of the lung; pulmonary edema, or fluid in the lung; and pleural effusion, or fluid on the pleura. Pulmonary embolism occurs when a blood clot or other foreign substance lodges in the lungs and blocks the major pulmonary arteries.
© 1993-2008 Microsoft Corporation. All Rights Reserved.
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© 2008 Microsoft
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