Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal silhouettes are stable , reflective of a tortuous thoracic aorta . The bilateral hila are within normal limits . There are low lung volumes and crowding of bronchovascular structures . There is bibasilar atelectasis . There is no evidence of focal consolidation . There is no evidence of pulmonary edema . There is no pneumothorax . No evidence of pleural effusion .
    OUTPUT:
    
Stable chest radiograph . Low lung volumes . No acute cardiopulmonary process .