CTICasesMultifocal Endobronchial Tumor
Imaging findings
Radiographs show left upper lobe collapse and multiple visible endobronchial densities within the left mainstem bronchus. CT confirms a large obstructing mass in the left upper lobe bronchus causing complete atelectasis, along with multiple other polypoid endobronchial masses in both the left and right mainstem bronchi, creating a ball-valve effect. Preliminary pathology showed small round blue cells.
Key takeaways
Multifocal endobronchial tumors are rare and can present as severe airway obstruction with a ball-valve effect. Differential diagnoses for multiple endobronchial masses include lymphoma, small cell lung cancer, papillomatosis, and multifocal squamous cell carcinoma.
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