Prominent pericardial recess on trauma CT
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Prominent fluid within the superior aortic pericardial recess. This is normal variant and important to distinguish in the setting of chest trauma from a periaortic/mediastinal haematoma. This patient does not have an aortic injury. Subtle hepatic segment 4 liver laceration is present.
Prominent superior aortic pericardial recess (normal variant). It is important to distinguish this in the setting of chest trauma from a periaortic/mediastinal haematoma which will be higher in density and more ill-defined. While this patient has no injury in the chest, there is a subtle liver laceration.