Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size , mediastinal , and hilar contours are normal . Mild biapical pleural scarring is unchanged . No focal consolidation , pleural effusions , or pneumothorax . No free subdiaphragmatic air . Left second and third anterior and posterior rib fractures are identified and well corticated in appearance , but new in the interval since the prior radiograph . Incidentally noted healed right lower rib fractures .
    OUTPUT:
    
1 . No free subdiaphragmatic air or focal consolidation . 2 . Left second and third well - corticated rib fractures are new since ___ .