Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Two views were obtained of the chest . The lungs are well expanded and clear with right greater than left apical scarring and biapical emphysema again noted . Reticulonodular opacities at the right base are compatible with scarring seen on the previous chest CT . Cardiac silhouette is unchanged in appearance with sutures and sternotomy wires again noted .
    OUTPUT:
    
No acute intrathoracic process .