Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes remain low . Cardiac silhouette size is top normal in size , unchanged . Mediastinal contour is unremarkable . Crowding of bronchovascular structures is present without overt pulmonary edema . Streaky and patchy bibasilar airspace opacities most likely reflect atelectasis . No focal consolidation , pleural effusion or pneumothorax is present .
    OUTPUT:
    
Low lung volumes with bibasilar atelectasis .