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Inspiratory and expiratory high-resolution CT findings in a patient with Sjögren's syndrome and cystic lung disease.

R ecent studies have emphasized the use of inspiratory and expiratory high-resolution CT in detecting and characterizing small airways disease and concomitant air trapping [I]. It has been suggested that. in some cases, dynamic expiratory highresolution CT may be more sensitive than spirometry in revealing early bronchiolitis [I]. Because Sjogren’s syndrome is a systemic autoimmune exocrinopathy that frequently involves the lungs, pulmonary manifestations include pneumonia, atelectasis, bronchiectasis, interstitial pulmonary disease. lymphoproliferative disorders, and airflow obstruction [2, 3]. Unusual concomitant diseases include amyloidosis and sarcoidosis [4-7]. This case report describes the use of dynamic high-resolution CT in revealing a rare manifestation of Sjogren’s syndrome: bronchiolitis associated with cystic lung disease.