Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A pigtail drainage catheter projects over the right upper quadrant . A density superimposed over it appears to correlate with post-surgical changes situated inferior and anterior to this site on the prior CT . The position of the drain appears unchanged . There is new opacification of the right lower lobe with volume loss and probably a portion of the right middle lobe with suspected pleural effusion . There is no evidence for pleural effusion on the left . There is no pneumothorax . There is also increasing streaky left infrahilar opacification suggesting atelectasis . Upper lobes remain clear . Bony structures are unremarkable .
    OUTPUT:
    
New widespread opacification of the right lower lung , including probably the entirety of the right lower lobe and likely a substantial portion of the right middle lobe , including probable pleural effusion which is difficult to quantify . However , much of the opacity is suspected to represent atelectasis or pneumonic consolidation associated with pneumonia . CT or a right decubitus film might be helpful to assess for type and size of pleural effusion , if clinically indicated .