Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are slightly low . Bibasilar atelectasis is noted . Superimposed infection can not be definitely excluded . No pleural effusions . No pneumothorax seen . The cardiomediastinal contour is within normal limits . No free air under the diaphragm . Old fracture of the distal left clavicle , deformity of the glenoid and left proximal humerus also likely reflects a chronic fracture . Deformity of the distal right clavicle consistent with an old fracture .
    OUTPUT:
    
Bibasilar atelectasis , superimposed infection can not be excluded . Multiple fractures of the bilateral shoulders are likely chronic but incompletely evaluated on this study .