Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: 2 views were obtained of the chest . The lungs are mildly hyperexpanded without focal consolidation , pleural effusion or pneumothorax . Mild interstitial abnormality is unchanged , likely chronic or recurrent , mild edema . The heart is normal in size with tortuous aortic contour .
    OUTPUT:
    
Interstial lung abnormality , more likely chronic than mild edema .