Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . No displaced rib fractures seen . Deformity of the a left 9th rib is unchanged . No pleural effusion or pneumothorax . No focal airspace consolidation worrisome for pneumonia . Bibasilar atelectasis is present . Cardiac size is top normal . The mediastinal and hilar structures are unchanged with a tortuous aorta .
    OUTPUT:
    
No acute rib fracture .