Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single upright portable radiograph of the chest demonstrates the lungs are mildly hyperexpanded , with mild right basilar atelecatasis and peribronchial wall thickening of the right lower lobe airways . The heart is mildly enlarged , stable compared to prior studies . There is no pneumothorax or large pleural effusion . No overt pulmonary edema is detected . Coarse interstitial markings are unchanged compared to prior studies . Multiple right - sided rib deformities are unchanged . A dual - lead pacemaker device is in stable position , with leads terminating in the right atrium and right ventricle .
    OUTPUT:
    
Stable mild cardiomegaly . Peribronchial infiltrate in the right lung base is likely due to underlying bronchiectasis or bronchitis , however an oblique or lateral view is recommended for better characterization .