Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest were obtained . Lung volumes are low , though lungs appear clear . No definite consolidation , effusion , or pneumothorax . Heart and mediastinal contours appear grossly unremarkable , though patient 's slight rotation to the right limits the evaluation of the mediastinum . Bony structures appear intact . No definite displaced fractures are seen .
    OUTPUT:
    
No acute traumatic injury is seen .