Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again seen , is a small left pleural effusion . Cardiomediastinal contour is unchanged . Also is unchanged is a rounded consolidation around the clips in the left upper lobe , likely postprocedural . No new focal consolidation is seen . Right lung is grossly clear . There is no pneumothorax . There are severe bilateral degenerative changes of the acromioclavicular joints .
    OUTPUT:
    
1 . Stable small left pleural effusion . 2 . Unchanged rounded opacity adjacent to the clips in the left upper lobe . No new focal consolidation . 3 . No pneumothorax .