Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . There is mild basilar atelectasis . Patient is slightly rotated to his left . Allowing for limitations , the lungs appear clear . No large effusion or pneumothorax is seen . The heart size appears stable . The mediastinal contour is normal . No acute bony injuries .
    OUTPUT:
    
No acute findings .