Month: October 2017

Overview Pericarditis Open pop-up dialog box Close Pericarditis Pericarditis The heart on the left shows the typical outer lining of the heart (pericardium). The heart on the right shows a swollen and infected lining (pericarditis). Pericarditis is swelling and irritation of the thin, saclike tissue surrounding the heart (pericardium). Pericarditis often causes sharp chest pain. The chest pain occurs when the irritated layers of the pericardium rub against each other. Pericarditis is usually mild and goes away without treatm...