Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . The lungs appear clear . The heart size is normal . The aorta is unfolded . No large effusion or pneumothorax . Mild hilar prominence likely reflects ectatic vasculature . Bony structures appear intact without definite evidence for a displaced rib fracture .
    OUTPUT:
    
No acute findings .