Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were provided . Midline sternotomy wires are again noted as well as mediastinal clips . There is opacity at the right lung base likely residing in the right middle and lower lobes as seen previously concerning for pneumonia . There is also retrocardiac opacity , which is slightly diminished from prior exam , which may also represent another site of pneumonia . No pneumothorax . Cardiomediastinal silhouette is stable .
    OUTPUT:
    
Persistent opacities in the right and left lower lungs concerning for pneumonia . Probable associated small right pleural effusion .