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 ...

Dressler’s syndrome is a rare but treatable type of inflammation in the sac surrounding the heart. It develops shortly after a heart injury, such as a heart attack, and may return after treatment. The ...

Lupus can cause inflammation of the pericardium, the lining around your heart. Depending on the severity of your symptoms, treatments range from over-the-counter pain relievers to surgery. Systemic ...