Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear with no evidence of consolidation , effusion , or pneumothorax . Cardiac silhouette is moderate - to - severely enlarged . Post - sternotomy wires are noted as well as a mitral valve prosthesis . No acute fractures are identified .
    OUTPUT:
    
Stable moderate - to - severe cardiomegaly with no acute cardiopulmonary processes .