Chest trauma can injure intrathoracic vessels, usually affecting the aorta and arch branches; however, a traumatic pulmonary artery pseudoaneurysm (PAP) has been reported, albeit relatively rarely. Blunt chest trauma as an aetiology for a PAP is even more rare than penetrating chest trauma. There is usually a time delay from several days to several months between injury and detection of a PAP. Traditionally, operative management has been recommended because of the risk of PAP rupture. Here, we describe an unusual case of a PAP following blunt trauma that was detected early on computed tomography, 8 hours after injury, and the PAP resolved with conservative management.
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