empyema

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Related to pyothorax: pleural effusion, chylothorax

empyema

(ĕmpē-ē`mə), persistent purulent discharge into a cavity such as the pleural space or the gallbladder. Empyema results as a complication of bacterial infections such as pneumonia and lung abscess. It is now relatively rare because of the widespread availability of therapy for the infections that precipitate the disease.

Empyema

 

the accumulation of pus in a closed body cavity or in a hollow organ if the outlet for the pus is blocked by a concrement or inflammatory infiltrate. Empyema may develop after purulent inflammation of the walls of a cavity or organ caused by shifting of the inflammatory process from the nearest organ, for example, from bone to the walls of a joint cavity in osteomyelitis. It also occurs after direct penetration of the infection into a cavity upon injury to its wall, for example, after rupture of a pulmonary abscess into the pleural cavity. The symptoms of empyema vary depending on whether the condition is acute or chronic and on the site of the infection. They may include a high fever, intoxication, pain, and change in the blood composition.

Treatment may require removal of the affected organ, for example, in suppurative appendicitis and suppurative cholecystitis. In some cases the purulent cavity is opened, pus is removed and the cavity is drained, for example, in suppurative pleurisy (thoracic empyema) or suppurative arthritis.

empyema

[‚em‚pī′ē·mə]
(medicine)
The presence of pus in the body cavity, hollow organ, or tissue space; when the term is used without qualification, it generally refers to pus in the pleural space.
References in periodicals archive ?
4% of the primary chest wall tumors, and most pleural lymphomas develop in association with preceding long-standing pleural disease such as long-standing chronic tuberculous pyothorax or artificial pneumothorax for lung tuberculosis.
Iuchi K, Ichimiya A, Akashi A, Mizuta T, Lee YE, Tada H, Mori T, Sawamura K, Lee YS, Furuse K: Non-Hodgkin's lymphoma of the pleural cavity developing from longstanding pyothorax.
Primary pleural lymphomas arising in persons with chronic pyothorax after treatment of pulmonary tuberculosis was first reported in 1987 by Iuchi and colleagues (26) in 3 Japanese subjects.
Pyothorax associated lymphoma: a review of 106 cases.
1) Recently, Aozasa and associates (2) proposed that chronic pyothorax associated with pulmonary tuberculosis is one of the risk factors for angiosarcoma developing in the chest wall.