Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since most recent prior , there has been interval reaccumulation of the left - sided pleural effusion which is moderate in size . Consolidation in the left lower lung is also more conspicuous , likely due to known underlying lesion with superimposed component of atelectasis . The right lung remains clear . Left sided cardiac margin is obscured . No acute osseous abnormalities identified .
    OUTPUT:
    
Re-accumulation of a moderate size left - sided pleural effusion with more conspicuous left basilar opacity likely due to underlying known lesion with superimposed atelectasis .