Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild bibasilar opacification is likely secondary to atelectasis . Small bilateral pleural effusion is noted . There is likely some associated basilar atelectasis . There is no pneumothorax or pulmonary edema . Cardiac silhouette is within normal size . No intraperitoneal free air is identified underneath the diaphragm . Dilated bowel loops are noted . Incidental note is made of the right posterior lateral sixth rib minimally displaced fracture which appears new from prior exam . Remodeling of left proximal humerus compatible with an old fracture .
    OUTPUT:
    
1 . No radiographic evidence of pneumonia . 2 . Incidental right posterior lateral sixth rib fracture .