Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Midline sternotomy wires and mediastinal clips are again noted . The heart remains mildly enlarged and there is mild congestion and pulmonary edema not significantly changed from prior exam . No large effusion is seen . Mild basilar atelectasis is noted without definitive evidence of pneumonia . Bony structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
Stable findings of mild cardiomegaly and mild pulmonary edema .