Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Scattered linear opacities are compatible with bibasilar atelectasis . There is no large pleural effusion . No pneumothorax is identified . Cardiac size within normal limits . Aortic calcifications are moderate . There is a minimally displaced fracture of the 6 right posterior rib . A questionable deformity is also noted of the fifth lateral rib on the right .
    OUTPUT:
    
Minimally displaced fracture of the right sixth posterior rib without underlying pneumothorax on this chest radiograph . Possible fracture of the fifth lateral rib as well .