CTICasesIdiopathic Follicular Bronchiolitis
Imaging findings
Chest CT shows diffuse, central-lobular ground-glass nodules that are more confluent in the lower lung zones. A surgical lung biopsy confirmed follicular bronchiolitis. The patient had no rheumatologic disease and remained stable.
Key takeaways
Follicular bronchiolitis can present as an idiopathic, sporadic disease in middle-aged or elderly patients. Unlike secondary forms, idiopathic follicular bronchiolitis can run a benign, non-progressive clinical course.
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