Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest demonstrate an increase in large left - sided pleural effusion with adjacent atelectasis . In addition , there is now obscuration of the right heart border . This could be due to atelectasis versus pneumonia in the correct clinical setting . There may be a small right - sided pleural effusion as well . Right - sided Port - A - Cath terminates in the right atrium , unchanged .
    OUTPUT:
    
Enlarging left - sided pleural effusion with compressive atelectasis . In addition , right - sided opacities , atelectasis versus pneumonia in the correct clinical setting .