NCIt definition : An inflammatory process affecting the pericardium.;
Alternative definition : NICHD: Inflammation of the pericardium, frequently manifested as chest pain, friction
rub, pericardial effusion, or ST segment elevation on EKG.; CTCAE: A disorder characterized by irritation to the layers of the pericardium (the
protective sac around the heart).; FDA: Inflammation of the pericardium.;