Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube is in standard position terminating 5 .4 cm from the carina . Enteric tube courses below the left hemidiaphragm , into the stomach and off the inferior borders of the film . Lung volumes are low . Cardiac silhouette size is mildly enlarged . Mediastinal and hilar contours are unremarkable . Crowding of the bronchovascular structures is present without overt pulmonary edema . Patchy opacities in the lung bases may reflect areas of atelectasis though aspiration or infection is not excluded , particularly in the retrocardiac region . No large pleural effusion or pneumothorax is identified on this supine exam . No displaced fractures are noted .
    OUTPUT:
    
1 . Standard positioning of the endotracheal and enteric tubes . 2 . Low lung volumes with probable bibasilar atelectasis . Aspiration or infection at the lung bases is not completely excluded .