Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Midline sternotomy wires and a prosthetic cardiac valve are noted . There is a dual lead pacemaker with leads extending to the region of the right atrium and coronary sinus . The heart appears mildly enlarged . There is mild pulmonary edema . No focal consolidation , effusion or pneumothorax is seen . Mediastinal contour appears normal . Mild hilar congestion is noted . Bony structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
Mild cardiomegaly with mild pulmonary edema .