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What causes pericarditis?
Pericarditis is usually from unknown causes (idiopathic). The cause may often be viral infections. Causes of pericarditis include:
Diseases that can cause generalized inflammation in other places within the body can also cause inflammation of the pericardium. Some examples include:
- Rheumatoid arthritis
- Systemic lupus erythematosus (SLE)
- Ankylosing spondylitis
- Inflammatory bowel disease
- Heart attack can cause direct irritation and inflammation of the pericardial lining.
- Dressler's syndrome describes inflammation caused by an immune response to heart tissue damage from heart attack, open heart surgery, or a trauma.
- Radiation therapy