Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison with chest radiograph from ___ , bilateral symmetric airspace opacities have worsened , particularly in the left mid lung and right lower lung , most consistent with multifocal pneumonia , though pulmonary edema , ARDS and alveolar hemorrhage can not be definitively excluded . Possible loculated left pleural effusion along the periphery of the left lower hemithorax is difficult to assess , though does not appear to be significantly worse . No other relevant change .
    OUTPUT:
    
1 . Interval worsening of bilateral symmetric airspace opacities , most consistent with multifocal pneumonia . 2 . Loculated left pleural effusion , likely unchanged .