[ill] ATELECTASIS IN CHRONIC PULMONARY SUPPURATION

Observations on massive collapse of the lung and on other clinical conditions presenting extensive atelectasis enable us to offer a more complete description of the characteristic roentgen-ray shadow cast by a single atelectatic lower lobe, and to call attention to its association with certain cases of chronic pulmonary suppuration. Lobar atelectasis has been identified by Manges¹ through roentgen-ray observations in cases of obstruction of the air passages by foreign bodies. It has been observed in postoperative massive atelectasis of the lung by Jackson and Lee² and by Churchill.³

ROENTGEN-RAY OBSERVATIONS IN LOBAR ATELECTASIS  A deflated lobe of the lung is commonly pictured as a small puckered mass retracting to the hilum by means of a bellows-like shortening of the bronchi. This is what happens when the deflation occurs as the result of pneumothorax or pleural effusion; but when it is produced by bronchial obstruction in a chest