Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal contours are stable with moderate cardiomegaly . The lungs are hyperinflated . Biapical scarring is unchanged . Otherwise The lungs are clear . There is no pneumothorax or enlarging pleural effusion . Chronic blunting of the right CP angle could represent small effusion or scarring . There are moderate degenerative changes in the thoracic spine
    OUTPUT:
    
No acute cardiopulmonary process .