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 or effusion . Cardiac silhouette is moderately enlarged . Elevation of the left hemidiaphragm is identified . Old healed posterior right rib fractures are identified .
    OUTPUT:
    
Moderately enlarged cardiac silhouette without definite superimposed acute cardiopulmonary process .