pyothorax

[pahy-oh-thawr-aks, -thohr-]
noun Pathology.

Origin:
1850–55; pyo- + thorax

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American Heritage
Medical Dictionary

pyothorax py·o·tho·rax (pī'ə-thôr'āks')
n.
Empyema in a plural cavity.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia Britannica
Encyclopedia

pyothorax

presence of pus in the pleural cavity, between the membrane lining the thoracic cage and the membrane covering the lung. The most common cause is lung inflammation (pneumonia) resulting in the spread of infection from the lung to the bordering pleural membrane, but pyothorax may also result from a lung abcess or some forms of tuberculosis. When the bronchial tree is involved in the infection, air may get into the pleural cavity. The presence of both air and pus inside the pleural cavity is known as pneumothorax. The treatment of pyothorax requires removal of the pus and the use of antibacterial drugs aimed selectively at the causative organism.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
Pyothorax or deep tissue lesions or wounds should also be examined for anaerobes.
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