Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac , mediastinal and hilar contours are normal . There are low lung volumes with but no focal consolidation . No pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities . No free air is seen under the diaphragms .
    OUTPUT:
    
Low lung volumes but no acute cardiopulmonary abnormality . No subdiaphragmatic free air .