Hemopericardium refers to the presence of blood within the pericardial cavity, i.e. a sanguineous pericardial effusion. If enough blood enters the pericardial cavity, it can result in a potentially fatal cardiac tamponade can occur. Hemopericardium and resulting tamponade can occur from any form of chest trauma, free wall rupture following myocardial infarction, retrograde bleeding into the pericardial sac following a type A aortic dissection, and as a complication of any invasive cardiac procedure. By: https://www.instagram.com/p/BrcJIREBHZF/?utm_medium=copy_link