2009-11-11 21:19:17 -

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Infections of the lung sometimes will develop a walled off abscess cavity. As this cavity enlarges, pus accumulated in it. Frequently, these abscess occur when some material has been aspirated, or inhaled, from the mouth or throat. Diseases, such as lung cancer, can lead to obstruction of some of the airways with the development of an abscess. Most lung abscesses

are solitary, however, occasionally multiple lung abscesses can occur at the same time.

Causes of Lung Abscess


A lung abscess may be a complication of pneumonia. It can also sometimes occur when an unconscious or sedated person inhales infected material from the upper-breathing passages. This is commonly seen in someone intoxicated with alcohol that vomits. Lung cancer can obstruct one of the large air channels, or bronchi, and produce a lung abscess. Other infections, such as tuberculosis and fungal infections, can produce lung abscesses. These abscess are usually caused by virulent, or potent, bacteria, such as Klebsiella, Pseudomonas, Staphylococcus or beta-hemolytic streptococci.

Signs and Symptoms of Lung Abscess


Symptoms of a lung abscess often develop over several days to several weeks. At first, there is fatigue and malaise. There may be significant weight loss. Fever and chills develop. A cough may develop and the cough may produce large amounts of pus-like sputum, especially if the abscess cavity ruptures into a bronchus. Bad breath may occur and the sputum may be foul smelling with certain bacteria. Sometimes, chest pain and shortness of breath will develop.

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