Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . The lungs are clear of focal consolidation , effusion , or vascular congestion . The cardiac silhouette is enlarged but stable . Enlargement of the thoracic aorta is unchanged . Median sternotomy wires and mediastinal clips are again seen .
    OUTPUT:
    
Cardiomegaly without acute cardiopulmonary process .