Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well - expanded and clear . No pleural effusion or pneumothorax . Heart size , mediastinal contour , and hila are unremarkable . Limited assessment of the upper abdomen is within normal limits . No free intraperitoneal air .
    OUTPUT:
    
1 . No acute cardiopulmonary process . Specifically no free intraperitoneal air .