ABSTRACT
Diffuse panbronchiolitis (DPB), an inflammatory airway disease of the lungs,
predominantly involves respiratory bronchioles. It causes chronic cough, copious sputum (chronic infectious disease), and exertional dyspnea with
airflow limitation (obstructive airway disease). DPB is a distinct clinico-
pathologic disease that involves the upper and lower respiratory tracts. Chest
roentgenograms typically show small nodular shadows and hyperinflation
involving both lungs. Computed Tomography (CT) scans reveal characteris-
tic small nodular shadows localized in a centrilobular distribution with or
without bronchioloectasis.
