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Pulmonary embolism

Pulmonary embolism is a blockage of an artery in the lungs by a blood clot, fat, air or clumped tumor cells.

By far the most common form of pulmonary embolism is a thromboembolism, which occurs when a blood clot, generally a venous thrombus, becomes dislodged from its site of formation and embolizes to the arterial blood supply of one of the lungs.

Symptoms may include difficulty breathing, pain during breathing, and more rarely circulatory instability and death.

Treatment is with anticoagulant medication, such as warfarin.

Note:   The above text is excerpted from the Wikipedia article "Pulmonary embolism", which has been released under the GNU Free Documentation License.
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May 29, 2015

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