Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single AP upright portable view of the chest was obtained . Dual - lead left - sided pacer device is again seen , leads unchanged in position . Aorta remains calcified and unfolded . Mild enlargement of the cardiac silhouette persists . Bibasilar atelectasis is again seen . There is minimal to no pulmonary vascular congestion .
    OUTPUT:
    
No significant interval change .