CTICasesLung Abscess with Pulmonary Pseudoaneurysm
Imaging findings
Chest CT shows a large right lower lobe abscess cavity with internal gas. A small, branching hyper-attenuating vascular blush (pseudoaneurysm) is visible within the abscess wall. The patient had severe dental decay.
Key takeaways
Severe dental infections can lead to aspiration pneumonia and lung abscesses. Chronic vascular erosion within the abscess wall can form a pulmonary artery pseudoaneurysm, which carries a high risk of life-threatening hemoptysis.
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