Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Possible mild hyperinflation , unchanged , raising the question of background COPD . Mild cardiomegaly , also unchanged compared with ___ . Aorta minimally unfolded . Prominent interstitial markings bilaterally may reflect chronic lung disease . No focal consolidation , pleural effusion or pneumothorax detected . Minimal pleural thickening along the right chest wall is smooth and unchanged .
    OUTPUT:
    
1 . Probable mild hyperinflation and mild cardiomegaly , unchanged compared with ___ 2 . Mild diffuse prominence of interstitial marking is not clearly changed -- ? due to background chronic lung disease . 3 . No focal consolidation , effusion , or pneumothorax detected .