Pediatric follicular bronchiolitis with severe atelectasis: a case report.

Follicular bronchiolitis is a rare pulmonary disorder characterized by the presence of multiple hyperplastic lymphoid follicles with a peribronchiolar distribution. An 11-year-old girl with total atelectasis of the right middle lobe (RML) and diffuse multiple small nodules at both lung bases presented to our hospital with frequent upper respiratory infections and pneumonia. The disease progressed during a 3-month period of macrolide therapy, and...