Acute pericardial disease (acute pericarditis ... and lung cancer was the most common malignancy (72.2%). Risk factors for a neoplastic etiology were a history of malignancy (OR: 19.8), cardiac ...

Idiopathic pericardial effusions are likely autoimmune mediated; however, as the name implies, this remains unclear. Miscellaneous causes include malignancy, of which lung cancer, breast cancer ...

as can be seen in a pericardial effusion from a malignancy. Rarely, left ventricular free wall rupture can occur after an MI causing hemorrhage into the pericardium and cardiac tamponade ...