Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . No focal consolidation present . THE THORACIC AORTA IS TORTUOUS IN GENERALLY LARGE . FOCAL DILATATION , PARTICULAR IN THE ASCENDING PORTION IS NOT EXCLUDED BY THIS EXAMINATION . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
No evidence of pneumonia .