Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A PleurX catheter is in - situ in the right lower chest . There is a residual pleural effusion which has increased slightly when compared to the prior chest radiograph . This is similar in appearance when compared to the prior PET - CT . Previous median sternotomy noted . No focal consolidation seen . No left - sided pleural effusion . A surgical clip or fiducial seen in the right lung apex . Mild degenerative changes are seen throughout the thoracic spine .
    OUTPUT:
    
Small right pleural effusion with a PleurX catheter in - situ .