Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable supine view of the chest . Midline sternotomy wires and left chest wall pacer device is noted with pacer lead extending into the region the right ventricle . The heart is mildly enlarged . The aorta is calcified and unfolded . There is hilar congestion and mild to moderate interstitial edema . No supine evidence for effusion or pneumothorax . No definite fracture is seen .
    OUTPUT:
    
Mild cardiomegaly with hilar congestion and mild to moderate pulmonary edema .