Pericardial effusion

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Notion

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Science and technology

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What Wikipedia says

A pericardial effusion is an abnormal accumulation of fluid in the pericardial cavity. The pericardium is a two-part membrane surrounding the heart: the outer fibrous connective membrane and an inner two-layered serous membrane.

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

Image: Jer5150, CC BY-SA 3.0, via Wikimedia Commons.