CTICasesEndobronchial Papillomatosis with Left Lower Lobe Collapse
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Imaging findings
CT showed collapsed left lower lobe with a convexity at the origin of the left lower lobe bronchus, subcarinal lymph node enlargement, and a nodular, thickened appearance of the trachea with a filling defect. Subtle irregularities of the airways were also present. Virtual bronchoscopy showed mucosal lesions and stenosis with airway irregularity.
Key takeaways
Endobronchial papillomatosis presents with obstructing lesions in the airways, leading to collapse. It can involve multiple lesions and cause airway irregularities and stenosis due to scarring from repeated treatments. While historically seen in children, it is increasingly observed in adults, often with risk factors like smoking. HPV testing may be part of the workup to distinguish from other squamous neoplasms.
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