Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs were obtained . A faint nodule projects over the left 6th rib . Otherwise , the lungs are well expanded and clear . There is no focal consolidation , effusion , or pneumothorax . Cardiac and mediastinal contours are normal .
    OUTPUT:
    
Faint nodule over the left 6th rib may be due to summation of shadows . A repeat radiograph with shallow obliques is recommend .