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Lung Abscess |
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Bacterial lung abscess is predisposed by
several diseases
A bacterial lung abscess appears as a cavity, typically 1-3 cm in diameter,
containing pus and surrounded by
fibrosis and organizing lung.
There are many diseases that cause or predispose
to development of
a lung abscess including infection in a pulmonary infarct, unresolved acute
pneumonia (particularly due to staphylococci),
aspiration of gastric contents, and bronchiectasis.
The main complications of an abscess are rupture into pleura, causing empyema
and pneumothorax;
haemorrhage from erosion into pulmonary vessel; and bacteraemia causing cerebral
abscess.
A lung abscess is seen as a cavity filled with green purulent material. The
histological section shows
the cavity of a peripheral lung abscess containing pus, with a wall composed of
acute inflammatory granulation tissue. This
was derived from an infected area of infarction. |
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We give here simplified and accurate information about the disease
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