Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are low inspiratory volumes . There is rotated positioning . Allowing for this , the cardiomediastinal silhouette is probably unchanged compared with ___ . Upper zone redistribution likely relates to low inspiratory volumes . There is minimal atelectasis , somewhat patchy at the left base . No definite infiltrate . There is atelectasis in the right cardiophrenic region , also without definite infiltrate . Minimal blunting of both costophrenic angles , without gross effusion . No pneumothorax detected .
    OUTPUT:
    
Bibasilar atelectasis , with elevated right hemidiaphragm . No definite infiltrate . No gross effusion .