Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is unchanged moderate left lower lobe atelectasis and bilateral pleural effusions . Linear atelectases in the left mid lung field are again seen , essentially unchanged . Lesion in the right seventh rib is unchanged . Pleurx catheter is seen , unchanged in position at the base of the left lung . There is no evidence of pneumothorax . Pacer is seen with leads appropriately placed within the right and left atria . Mediastinal silhouette is within normal limits with a calcified aorta .
    OUTPUT:
    
Study is essentially unchanged from prior . Stable left - sided atelectasis and pleural effusion . No pneumothorax .