CTICasesSwyer-James-MacLeod Syndrome with Constrictive Bronchiolitis and Air Trapping
[...]. Swyer-James-MacLeod Syndrome with Constrictive Bronchiolitis and Air Trapping. CTICases. Published October 23, 2026. https://cticases.com/c/7nk6y
Imaging findings
A radiograph from 2017 shows mid and upper zone bronchial abnormalities with rarefied apices and bases that lack lung vessels, more extensive on the left. CT shows widespread air trapping, a hyperlucent right upper lobe with the fissure pushed back, and bronchiectasis in several lobes. The vessels are small but branch normally, and the lungs are otherwise clean.
Key takeaways
Post-infectious constrictive bronchiolitis from a childhood insult causes hyperlucency and air trapping with preserved but small vessels, and bronchiectasis often develops later. The absence of ongoing infection and the regular vessel branching argue against cystic fibrosis, ciliary dyskinesia and immune deficiency. Swyer-James is not limited to one side, and widespread CT findings are expected when the disease is post-infectious.
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