Assess for underlying cause
CXR
Heart partially or completely surrounded by gas
Pericardium sharply outlined by gas density on either side
Continuous diaphragm sign may be present (diaphragm seen continuously across the midline
PoCUS
Bright spots moving along pericardial layer during diastole
Comet-tail artefacts extending across heart and disappearing during systole
Heart partially or completely surrounded by gas
Pericardium sharply outlined by gas density on either side
Continuous diaphragm sign may be present (diaphragm seen continuously across the midline
Bright spots moving along pericardial layer during diastole
Comet-tail artefacts extending across heart and disappearing during systole
Pneumopericardium
Airway/Pulmonary
Chylothorax
Bronchial injury
Hemothorax
Diaphragmatic trauma
Pneumomediastinum
Tension pneumothorax