Source:http://linkedlifedata.com/resource/umls/id/C0034065
MSH: Blocking of the PULMONARY ARTERY or one of its branches by an EMBOLUS.,NCI: The obstruction of the pulmonary artery or one of its branches by an embolus, sometimes associated with infarction of the lung.,MEDLINEPLUS: <p>A pulmonary embolism is a sudden blockage in a lung artery. The cause is usually a blood clot in the leg called a <a href='http://www.nlm.nih.gov/medlineplus/deepveinthrombosis.html'>deep vein thrombosis</a> that breaks loose and travels through the bloodstream to the lung. Pulmonary embolism is a serious condition that can cause</p><ul> <li>Permanent damage to the affected lung </li> <li>Low oxygen levels in your blood </li> <li>Damage to other organs in your body from not getting enough oxygen </li></ul><p>If a clot is large, or if there are many clots, pulmonary embolism can cause death. </p><p>Half the people who have pulmonary embolism have no symptoms. If you do have symptoms, they can include shortness of breath, chest pain or coughing up blood. Symptoms of a blood clot include war