Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with prior radiographs on ___ , there is no significant change in small right and moderate left - sided pleural effusions . There is a persistent retrocardiac opacity , may represent atelectasis or pneumonia . No pneumothorax . The cardiac and mediastinal silhouettes are unremarkable . A left PICC line terminates in the mid SVC .
    OUTPUT:
    
Persistent small right and moderate left - sided pleural effusions . Persistent Left lower lung opacity , may reflect atelectasis or pneumonia .