Isolated pneumopericardium after penetrating chest injury

Pneumopericardium is defined as the presence of air or gas in the pericardial sac. Its course is stable unless tension pneumopericardium develops. However, even patients with asymptomatic pneumopericardium should be carefully monitored due to risk of tension pneumopericardium. We presented a 24-year-old male victim with stab wound complicated with isolated pneumopericardium. Pneumopericardium was accidentally encountered by plain chest radiograph. It was spontaneously resolved without pericardiocentesis or pericardial window.