Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A dual lead left - sided pacemaker remains in place . The patient has had prior aortic valve replacement . Sternotomy wires are intact and aligned . There is stable mild elevation of the right hemidiaphragm . The lungs are clear . There is no pneumothorax . Mild cardiomegaly is stable . A tortuous thoracic aorta is again incidentally noted .
    OUTPUT:
    
No evidence of acute CHF . Stable mild cardiomegaly .