Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with radiographs on ___ , there is interval improvement in aeration in the right upper lung with some post operative changes again seen . Elevation of the right hemidiaphragm is unchanged . There is no new focal consolidation . No pleural effusion or pneumothorax is seen . Cardiomediastinal silhouette is unchanged . .
    OUTPUT:
    
Interval improvement in aeration in the right upper lung compared with prior . No new pneumonia or pneumothorax .