Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal contours are normal with tortuous aorta . The lungs are clear with no evidence for acute lung disease or pulmonary nodules . There is no pneumothorax or pleural effusion . The lungs are hyperinflated with flattened diaphragms consistent with longstanding tobacco abuse .
    OUTPUT:
    
No evidence of pulmonary nodules or malignancy .