Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is mild to moderate enlargement of the cardiac silhouette . Mediastinal contours are relatively unchanged . There is continued mild pulmonary edema , slightly worse compared to the previous exam , with patchy bibasilar opacities likely reflecting atelectasis noted 1 . Additionally , as noted previously , prominent ring shadows are noted within the left upper lung field suggestive of bronchiectasis . Left apical pleural thickening is unchanged . No pleural effusion or pneumothorax is identified . Mild to moderate degenerative changes are noted within the thoracic spine .
    OUTPUT:
    
Mild pulmonary edema . Probable bibasilar atelectasis , but aspiration or infection can not be excluded .