Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are moderately well inflated with bibasilar atelectasis . No pleural effusion or pneumothorax . There is stable mild biapical symmetric pleural thickening . Stable mild cardiomegaly . Mediastinal contour and hila are otherwise unremarkable . Intact median sternotomy wires are noted as well as aortic arch calcifications . Limited assessment of the osseous structures are unremarkable . No displaced rib fracture .
    OUTPUT:
    
1 . Bibasilar atelectasis , left greater than right . 2 . No displaced rib fracture .