Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is severe dextroscoliosis of thoracic spine . Compared to prior studies , there is improved aeration of the left lung . There are persistent emphysematous changes . Soft tissue densities are seen in the left hemithorax , compatible with pleural and lung nodules seen on chest CT of ___ . There is a right chest wall port that ends at the cavoatrial junction . There is no pneumothorax . There is no focal consolidation to suggest pneumonia .
    OUTPUT:
    
1 . No pneumonia . 2 . Interval improvement in aeration of the left lung .