Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral chest radiographs demonstrate a left - sided dual - chamber pacer terminating in standard position . There is a small area of hazy nodularity at the left lung base thought most likely to represent atelectasis . Tortuous aorta and coronary artery stent are again visualized . There is no focal consolidation , pleural effusion , or pneumothorax . The cardiac , hilar , and mediastinal contours are normal .
    OUTPUT:
    
Left basilar atelectasis . Otherwise , normal .