CTICasesAspirated Thumbtack causing Post-Obstructive Pneumonia
Imaging findings
Chest radiograph and CT show a metallic foreign body (thumbtack) obstructing the left upper lobe bronchus, resulting in post-obstructive pneumonia and atelectasis. The patient recalled a thumbtack ingestion/aspiration event eight years prior.
Key takeaways
Foreign body aspiration can remain clinically silent for years before presenting with recurrent infections, bronchiectasis, or post-obstructive atelectasis. Atypical locations like the upper lobes can occur depending on patient positioning during aspiration.
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