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 noted with leads extending into the region of the right atrium and right ventricle . There is linear density in the right mid lung unchanged from prior likely mild scarring . There is no focal consolidation , large effusion or pneumothorax . No signs of congestion or edema . The heart size is stable and normal . The aorta is unfolded with unchanged mediastinal contour . Bony structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
No signs of pneumonia .