Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours are unchanged and within normal limits . Continued right middle lobe opacification appears similar when compared to prior study , and remains concerning for pneumonia . Streaky linear opacities in the left lobe have improved , and likely reflect improving pneumonia with residual atelectasis . No new areas of consolidation are present , there is no pneumothorax . Previously noted tiny pleural effusions appear likely resolved . There are multilevel degenerative changes in the thoracic spine .
    OUTPUT:
    
1 . Continued right middle lobe opacification concerning for pneumonia . As the findings appear similar when compared to prior study , chest CT should be obtained to evaluate for the presence of an obstructing central or endobronchial lesion . 2 . Improved aeration of the left lower lobe with residual linear opacities which may be reflective of atelectasis .