Bronchiolitis Obliterans (BO): HRCT findings in 20 patients

摘要

Introduction Bronchiolitis obliterans (BO), also known as constrictive bronchiolitis is a fibrosing form of obstructive lung disease that follows a severe insult to the lower respiratory tract. It occurs in a heterogenous group of lesions varying in their etiology, clinical settings and pathologic features but are centered in small conducting airways. Patients and methods The study included 20 patients 14 females and 6 males, mean age range 7–64 years (average of 39.25 years) with a variety of chest symptoms on whom HRCT was performed. Results Mosaic attenuation pattern was seen in all patients. Other HRCT findings included bronchiectasis, bronchial wall thickening and centrilobular nodules. Conclusion High-resolution CT is currently superior as an imaging modality in diagnosis of bronchiolitis obliterans, however, diagnosis of BO requires exclusion of other causes of chronic airway obstruction.