Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Left chest wall pacer device is again seen with leads extending to the region the right atrium and right ventricle . The heart is top - normal in size . Hila appear congested . There is cephalization without frank edema . Mild scarring at the left lung base is suspected .
    OUTPUT:
    
Mild cardiomegaly with hilar congestion .