Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Midline sternotomy wires and prosthetic cardiac valve again noted . There is a left chest wall pacemaker with leads extending to the region the right atrium and right ventricle as on prior . There is persistent mild cardiomegaly with hilar congestion and mild pulmonary edema . No large effusion or pneumothorax seen . Bony structures are intact .
    OUTPUT:
    
Stable cardiomegaly with hilar congestion and mild edema .