Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Prior right - sided central venous catheter is no longer seen . There is a moderate left pleural effusion , slightly smaller when compared to prior . There is also a trace right pleural effusion , also decreased . Streaky right basilar opacities are likely secondary to atelectasis . Superiorly , the lungs are clear . Cardiomediastinal silhouette is grossly unchanged although partially obscured . Coronary artery stents are noted as well as mediastinal clips . No acute osseous abnormalities .
    OUTPUT:
    
Persistent moderate left pleural effusion and a trace right pleural effusion .