Air bronchogram

Abstract

Air bronchogram, was firstly defined by Fleishner in 1927, is the roentgenographic shadow of an air-containing bronchus peripheral to the hilum and surrounded by airless lung (whether by virtue of absorbtion of air, replacement of air, or both), a finding regarded as evidence of alveolar diseases and the patency of the more proximal airway. We present seven cases in which air bronchogram is positive on chest-x-ray and computerised tomography. These cases are as follows; Non-Hodgkin lymphoma, bronchoalveolar cell carcinoma, pulmonary alveolar proteinosis (PAP), perforated cyst hidatic, tuberculous pneumonia, sarcoidosis and pulmonary infarct.