Pericardial disease are conditions that affect your pericardium. Your pericardium is a flexible, two-layered sac that surrounds your heart. Your pericardium contains your heart in your chest wall. It ...

Myocarditis and pericarditis are types of heart inflammation. Myocarditis affects the middle layer of heart muscle, and pericarditis only affects the heart’s outer lining. Myocarditis and pericarditis ...

Acute pericarditis is a condition in which inflammation occurs in the pericardium, the fluid-filled sac that surrounds the heart. “Acute” means the condition develops quickly or suddenly. The ...