Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . The lungs remain clear , without focal consolidation or effusion . The cardiac silhouette is enlarged but stable compared to prior . Tricuspid valve replacement is again seen . Degenerative changes are seen at the right shoulder . Median sternotomy wires again noted .
    OUTPUT:
    
No acute cardiopulmonary process .