Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with prior radiographs of ___ , there is continued volume loss in the right lung , with subsegmental atelectasis at the right lung base , and increased aeration in the left lower lung with improved visualization of the left hemidiaphragm . There is no new focal consolidation . Cardiomegaly is unchanged .
    OUTPUT:
    
Right sided volume loss with subsegmental atelectasis , and improved aeration at the left lung base . No pneumonia .