- pyopneumopericardium
- Presence of pus and gas in the pericardial sac. [pyo- + G. pneuma, air, + pericardium]
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pyo·pneu·mo·peri·car·di·um (pi″o-noo″mo-per″ĭ-kahrґde-əm) [pyo- + pneumo- + pericardium] the presence of pus and gas or air in the pericardial cavity.
Medical dictionary. 2011.