Pleural empyema

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Science and technology

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What Wikipedia says

Pleural empyema is a collection of pus in the pleural cavity. It is caused by microorganisms, usually bacteria. It often happens in the context of a pneumonia, injury, or chest surgery. It is one of the various kinds of pleural effusion.

Excerpt from the Wikipedia article “Pleural empyema”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Drriad, CC BY-SA 3.0, via Wikimedia Commons.