Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is lung hyperinflation with flattening of the hemidiaphragms compatible with known history of emphysema . Otherwise , no new focal parenchymal opacities are identified . The cardiac and mediastinal silhouettes are stable . There is no pleural effusion or pneumothorax . Bilateral diffuse interstitial opacities seen on prior exam from ___ have completely resolved .
    OUTPUT:
    
Stable mild cardiomegaly and lung hyperinflation compatible with emphysema . Otherwise , no evidence of pneumonia .