Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperexpanded and there is flattening of the diaphragms consistent with emphysema . There is chronic bibasilar atelectasis . There are no focal consolidations . No pleural effusion or pneumothorax is seen . The cardiac , hilar and mediastinal silhouettes are unremarkable .
    OUTPUT:
    
Possible emphysema . Chronic bibasilar atelectasis is again seen . No evidence of pneumonia . No acute cardiopulmonary process .