Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear unchanged . There is a new opacity in the right lower lung , probably within the right lower lobe , which may reflect the recent history of pneumonia . Streaky opacities are present in the left lower lung , probably in the lingula , suggestive of scarring or atelectasis and unchanged , while a previously seen opacity in the left lower lobe has mostly resolved . There may be trace pleural effusions , but reduced and perhaps resolved . There is no pneumothorax . Bony structures are unremarkable .
    OUTPUT:
    
1 . New right basilar opacity for which pneumonia could be considered , although the chronicity is uncertain , noting the given history , but it is new since the prior available radiographs from this institution . Atelectasis or pneumonia could be considered . 2 . Resolving left lower lung opacity .