Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . No confluent opacities identified . In particular , no opacity seen to suggest an area of aspiration . There is no pulmonary edema or pleural effusions . Cardiomediastinal and hilar contours are within normal limits . No free air or dilated bowel loopps seen beneath the diaphragm .
    OUTPUT:
    
No acute cardiopulmonary process .