Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are low lung volumes . Streaky opacities at the lung bases likely reflect atelectasis . The cardiac silhouette size is normal . Mediastinal and hilar contours are unchanged , with crowding of the bronchovascular structures likely related to low inspiratory effort . There is no pleural effusion or pneumothorax . No acute osseous abnormalities are detected .
    OUTPUT:
    
Low lung volumes with bibasilar atelectasis .