CTICasesConstrictive bronchiolitis in rheumatoid arthritis
Imaging findings
Chest CT shows severe, extensive mosaic attenuation with air trapping on expiration, accompanied by dilation and bronchial wall thickening of the proximal airways, in a patient with rheumatoid arthritis and severe airway obstruction.
Key takeaways
Constrictive bronchiolitis is a rare, progressive airway manifestation of rheumatoid arthritis. It is characterized by severe air trapping and mosaic attenuation on CT due to bronchiolar fibrosis and luminal narrowing, resulting in severe obstructive physiology.
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