Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A trauma board overlies the patient . There is a right 4th rib fracture with adjacent mild pleural thickening . Coarse bibasilar opacities may reflect aspiration . There is no pneumothorax or pleural effusion . The heart size is top normal .
    OUTPUT:
    
1 . Right fourth rib fracture . 2 . No pneumothorax or pleural effusion . 3 . Coarse bibasilar opacities may reflect aspiration .