The term pericardium is derived from the Greek prefix peri- (“around”) and kardia (“heart”), implying a structure that envelops or encloses the heart. Morphologically, the pericardium is a fluid ...

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 ...