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 likely mildly enlarged . Mediastinal and hilar contours are unremarkable . Streaky bibasilar airspace opacities likely reflect atelectasis . Infection can not be completely excluded . No pleural effusion or pneumothorax is present . There are no acute osseous abnormalities .
    OUTPUT:
    
Low lung volumes with probable bibasilar atelectasis though infection is not completely excluded .