Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since the prior exam , there is increased opacification of the right lung with associated volume loss . A right pleural effusion appears unchanged . Post - surgical changes at the right apex are stable . There is persistent rightward tracheal deviation , which is stable . Worsening left lower lobe opacification could be due to an increasing pleural effusion or a new consolidation . Diffuse interstitial opacities appear to be worsened , suggestive of increasing pulmonary edema . The cardiomediastinal silhouette is difficult to evaluate given the pulmonary abnormalities . It appears unchanged .
    OUTPUT:
    
1 . New left lower lobe opacification could be due to pneumonia or an enlarging left pleural effusion . 2 . Probable mild pulmonary edema . 3 . Diffuse opacification and volume loss of the right lung is likely due to a combination of post-surgical changes , the known hilar mass , and possible worsening atelectasis .