A 57-year-old woman with a pulmonary mass

Article Abstract:

A 57-year-old woman was admitted to a hospital because a chest X-ray and CT scan taken several weeks before showed a mass in her left lung. She had never smoked but worked for many years as a seamstress in a factory. Although doctors had suspected pneumonia, she did not respond to antibiotics. A bronchoscopic exam did not reveal any cancer. Certain aspects of the mass seemed to resemble fat. One doctor suspected lipoid pneumonia, which was common in the 1940s and 1950s. It was caused by aspiration of fats, usually mineral oil. This diagnosis was confirmed when surgeons removed the mass.

Health aspects, Causes of, Lipids, Aspiration pneumonia

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Vena caval filters for the prevention of pulmonary embolism

Article Abstract:

Much more research is needed to determine whether vena caval filters can prevent blood clots in the legs from traveling to the lungs, a condition called pulmonary embolism. The filters are placed in the vena cava, which is the large vein that returns blood to the heart. The filters were used long before there was any evidence of their effectiveness. A 1998 study found that these filters successfully prevented pulmonary embolism but only when used with anticoagulant drugs. The use of filters did not reduce the mortality rate and seemed to increase the risk of blood clots in the legs.

Editorial, Evaluation, Prevention, Pulmonary embolism, Filters (Separation), Thrombosis, Deep vein, Deep vein thrombosis

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Gas embolism

Article Abstract:

Gas embolism occurs when air or other types of gas enter the blood stream. It can then move through the blood stream, causing serious damage. If it occurs in arteries, it can block the flow of blood to parts of the body. This could cause stroke or heart attack, depending on whether it occurs in the head or heart. If it occurs in veins, it will eventually end up in the lungs and can also affect the heart. No matter how it is caused or where, prompt treatment is urgent.

Air embolism, Gas embolism

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