Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright 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 . Cardiomediastinal silhouette is unchanged with atherosclerotic calcifications along the aortic knob and unfolded thoracic aorta again noted . The lungs appear clear . No focal consolidation , large effusion or pneumothorax . No signs of congestion or edema . Chronic left ribcage deformities again noted .
    OUTPUT:
    
Stable mild cardiomegaly . No signs of pneumonia or edema .