CTICasesBronchial Atresia with Incidental Lung Cancer
Imaging findings
Chest CT shows a classic branching, finger-in-glove tubular structure (mucocele) in the apical segment of the right upper lobe, associated with surrounding hyperlucent, oligemic lung parenchyma and absent apical segmental bronchus, characteristic of bronchial atresia. A separate, irregular solid mass is noted superiorly under the first rib, which was biopsy-proven to be an incidental lung cancer.
Key takeaways
Bronchial atresia is a congenital abnormality characterized by a blind-ending segmental bronchus, distal mucocele (bronchocele), and regional air trapping with oligemia. While benign, the prominent mucocele can act as a major visual distractor, potentially delaying the diagnosis of an adjacent, unrelated pathology such as lung cancer.
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