Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Otherwise , the lungs are essentially clear . There are no focal consolidations , pleural effusions or pneumothorax . No evidence of pneumomediastinum . Cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities are identified .
    OUTPUT:
    
No acute cardiopulmonary process .