Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . This accentuates the size of the cardiac silhouette which is borderline enlarged . Mediastinal and hilar contours are unremarkable . Crowding of the bronchovascular structures is noted without overt pulmonary edema . Patchy bibasilar airspace opacities likely reflect atelectasis but infection can not be completely excluded . No pleural effusion or pneumothorax is seen . Remote right - sided rib fractures are again noted .
    OUTPUT:
    
Low lung volumes with patchy bibasilar airspace opacities , likely atelectasis , but infection can not be completely excluded . Consider repeat PA and lateral views of the chest when the patient is able to take a deeper inspiration .