Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided PICC is stable in position . Patient is status post sternotomy and CABG . Cardiac and mediastinal silhouettes are stable . There are low lung volumes and persistent moderate right pleural effusion with overlying atelectasis . There has been no significant interval change in right base opacity .
    OUTPUT:
    
No significant interval change .