Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is top normal or slightly enlarged . Superior mediastinal contours are stable . There is possible minimal upper zone redistribution , without other evidence of CHF . No focal consolidation , pleural effusion , or pneumothorax detected . No pneumoperitoneum identified .
    OUTPUT:
    
No acute pulmonary process . No pneumoperitoneum .