harvard chest 8.txt


Atelectasis:


poor diaphragmatic excursion, hypoventilation, PE;


Atelectasis: central obstruction ?


endobronchial mass (bronchogenic CA, mucus plug, foreign body), extrinsic mass (large lymph nodes, large heart, aneurysm, mediastinal mass);


Atelectasis: peripheral obstruction ?


pneumonia, post-surgery (LLL after cardiac surgery);


Atelectasis: compression ?


pleural effusion, PTX;


Atelectasis: contraction ?


scarring from chronic TB or any pulmonary fibrosis


Complete opacification of one hemithorax:


complete atelectasis (bronchogenic CA, mucus plug, ETT too low), large effusion (mets, lymphoma), prior pneumonectomy, malignant mesothelioma, unilateral pneumonia or pulmonary edema