FIGURE 1.

a) Axial computed tomography (CT) showing mild thickening of bronchial walls (arrows) in a woman with Sjögren's syndrome. b) Chronic cough and recurrent pulmonary infections associated with bronchiolitis in a 60-year-old woman with primary Sjögren's syndrome. High-resolution CT showing multiple ill-defined centrilobular nodules (arrowheads) with sparing of the subpleural region. c, d) Follicular bronchiolitis in a 54-year-old woman with primary Sjögren's syndrome. c) High-resolution CT showing an area of heterogeneous attenuation in the left lower lobe of the lung (a finding referred to as mosaic attenuation) and the presence of well-defined, round, thin-walled air cysts (arrows). d) Photomicrograph (haematoxylin–eosin stain) showing lymphoplasmacytic infiltration and lymphoid follicles in the bronchiolar wall (arrowheads) and mild inflammation in the adjacent alveolar area. These findings are indicative of follicular bronchiolitis. Original magnification ×40.