Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated and the diaphragms are flattened consistent with emphysema . There are no focal opacities concerning for pneumonia . There is no pleural effusion , pneumonia or pneumothorax . Cardiac size is normal . Calcifications of the aortic knob are again present . There is no free air , but the left colon is dilated up to 9 cm .
    OUTPUT:
    
1 . No evidence of acute cardiopulmonary process . 2 . Dilated left colon , possibly up to 9 cm . Correspond for abdominal pain .