Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are grossly clear without focal consolidation , pleural effusion , pneumothorax , or pulmonary edema . Allowing for projection , the heart size is within normal limits . The mediastinal contours are also within normal limits . No acute , displaced rib fracture is identified . No free subdiaphragmatic air .
    OUTPUT:
    
No acute cardiopulmonary process .