| empyema of the pericardium | An accumulation of pus in the pericardial sac. Synonym: empyema of the pericardium. (05 Mar 2000) |
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| mastoid empyema | <pathology> Inflammation of the mastoid antrum and cells. (18 Nov 1997) |
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| pneumococcal empyema | Infection of the pleural cavity by Streptococcus pneumoniae, the pneumococcus, with pus formation. Pulsating empyema, a large, tense collection of pus in the pleural cavity through which the cardiac pulsations are transmitted to the chest wall. Streptococcal empyema, purulent exudation into the pleural cavity caused by infection with Streptococcus haemolyticus. (05 Mar 2000) |
| empyema | <chest medicine> The accumulation of pus in a cavity of the body, when used without a descriptive qualifier, it refers to thoracic empyema. (18 Nov 1997) |
| empyema benignum | latent empyema |
| empyema necessitatis | A form of pyothorax in which the pus burrows to the outside, producing a subcutaneous abscess which finally ruptures; it may result in spontaneous recovery without requiring an operation. (05 Mar 2000) |
| empyema of gallbladder | Severe acute cholecystitis with purulent inflammation of the gallbladder. Latent empyema, the presence of pus in a cavity, especially one of the accessory sinuses, unattended by subjective symptoms. Synonym: empyema benignum. Loculated empyema, pyothorax in which pleural adhesions form one or more pockets containing pus. (05 Mar 2000) |
| empyema, pleural | Suppurative inflammation of the pleural space. (12 Dec 1998) |
| empyema, subdural | An intracranial suppurative process between the dura and the arachnoid. The infection gains entrance to the subdural space from the frontal and ethmoid sinuses, the middle ear, and the mastoid cells. (12 Dec 1998) |
| empyema tube | A rubber drainage tube, piercing a sheet rubber shield, passed through the chest wall in order to drain an empyema. (05 Mar 2000) |
| empyema, tuberculous | Empyema due to mycobacterium tuberculosis. (12 Dec 1998) |
| adherent pericardium | Pericarditis with adhesions between the two pericardial layers, between the pericardium and heart, or between the pericardium and neighboring structures. Synonym: adherent pericardium. (05 Mar 2000) |
| bread-and-butter pericardium | Fibrinous pericarditis in which the visceral and parietal surfaces of the pericardium resemble those of two pieces of buttered bread that have been pressed together and then pulled apart, when they are separated at surgery or necropsy. (05 Mar 2000) |
| parietal layer of serous pericardium | The outer part of the serous pericardium suported by the fibrous pericardium. Synonym: lamina parietalis pericardii. (05 Mar 2000) |
| visceral layer of serous pericardium | The inner part of the serous pericardium applied directly on the heart. Synonym: epicardium, lamina visceralis pericardii. (05 Mar 2000) |
| visceral pericardium | The layer of the pericardial sac on the epicardial surface of the heart. It is composed mainly of a single layer of mesothelium. (05 Mar 2000) |