Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear stable . There is a large bulging opacity in the posterior lower right hemithorax which suggests a large loculated pleural effusion . A more free flowing portion of the effusion has also increased more anteriorly with possible patchy coinciding atelectasis . A suspicious nodule persists in the right upper lung . Possibly a right upper lung nodule has increased , but change could be better appreciated by comparing with CT if needed . The left lung remains clear with no effusion . The bones are probably demineralized to some extent .
    OUTPUT:
    
Findings suggestive of a large recurrent partly loculated effusion in the right lower hemithorax . Suspicious nodule in the right upper lobe , potentially increased somewhat .