CTICasesTracheobronchial Foreign Body Aspiration (Edamame)
Imaging findings
Chest radiograph shows right para-hilar consolidation and volume loss. Chest CT confirms right upper lobe atelectasis and consolidation, with mucus and an endobronchial filling defect within the right upper lobe bronchus. In addition, there is a hypermetabolic area of consolidative pneumonia in the superior segment of the right lower lobe on PET/CT. Bronchoscopic removal reveals an aspirated edamame shell causing complete airway obstruction.
Key takeaways
Foreign body aspiration is a well-known cause of lobar atelectasis and recurrent or non-resolving pneumonia, particularly in patients with history of alcohol abuse or altered consciousness. While CT can identify airway obstruction, it may mimic an endobronchial neoplasm. organic foreign bodies (such as edamame, peanuts, or seeds) can incite a severe localized inflammatory reaction and require prompt bronchoscopic retrieval.
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