Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Midline sternotomy wires are again noted . There is persistent opacity at the right lung base with volume loss which likely represents atelectasis and small effusion . The left lung and right upper lung remain well aerated . Bony structures are intact .
    OUTPUT:
    
Stable exam with right lower lung atelectasis and small effusion .