CTICasesIatrogenic Air Embolism
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Imaging findings
Initial CT pulmonary angiogram (CTPA) showed an unusual pattern appearing as "too many bronchial structures" in the middle lobe and lingula, where pulmonary arteries were opacified but then filled with air. This finding represented an iatrogenic air embolus, notably without visible air in the right ventricle or main pulmonary artery. A follow-up CTPA the next day demonstrated complete resolution of these findings.
Key takeaways
This case highlights a subtle presentation of iatrogenic air embolism, likely secondary to a repeat contrast injection and flush. The unique imaging appearance of opacified pulmonary arteries becoming air-filled, despite the absence of central air, should prompt immediate concern. Clinical management included 100% oxygen and observation, leading to complete resolution.
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See all cases from September 24, 2015 →