A pericardial effusion occurs when a significant amount of fluid fills the pericardial space. Individuals without pericardial effusion have a small amount of pericardial fluid (15 mL to 50 mL ...

The clinical diagnosis of acute pericarditis is based on simple criteria: typical chest pain, pericardial friction rub (Figure 2), widespread ST-segment elevation (Figure 3) and pericardial ...