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 noted with leads extending into the region of the right atrium and right ventricle . Midline sternotomy wires are noted . Increased interstitial opacities most compatible with interstitial pulmonary edema . No large effusion or pneumothorax . Heart size is normal . Mediastinal contours unremarkable . Bony structures are intact .
    OUTPUT:
    
Mild interstitial edema .