Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well inflated and clear . Bibasilar vascular prominence noted . There is mild right apical pleural thickening . No pleural effusion or pneumothorax noted . Left upper zone somewhat obscured by overlying pacemaker . There is unchanged position of a left upper quadrant pacemaker with intact pacer wires . Cardiomediastinal silhouette appears unchanged . No significant interval change in bony thorax .
    OUTPUT:
    
Well inflated clear lungs with mild vascular prominence in both lower lobes .