Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . The aortal appears mildly tortuous with an calcifed aortic knob . The hilar and mediastinal contours are normal . The lungs demonstrate no focal consolidations concerning for pneumonia . There is no evidence of pleural effusion or pneumothorax . Mild bibasilar atelectasis is persistent . Old right rib fractures are again seen . The previously noted slight contour abnormality of the left 5th rib is not definitely seen on this exam . No new displaced rib fractures are identified .
    OUTPUT:
    
No focal consolidations concerning for pneumonia identified . The previously noted contour deformity of the left 5th rib is not definitively seen on this exam , however there is further clinical concern , dedicated rib films would be recommended for further evaluation . No evidence of a pneumothorax .