Etiologies of Pericarditis
| “Idiopathic” |
| Infections (particularly viral) |
| Connective tissue disease (e.g., rheumatoid arthritis, SLE) |
| Post-cardiac injury (i.e., following heart surgery or myocardial infarction) |
| Uremia |
| Neoplasms |
| Mediastinal radiation therapy |
| Drug reaction (e.g., procainamide, hydralazine) |