Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Clear lungs bilaterally without pleural effusion or pneumothorax . Heart size , mediastinal contour and hila are normal with a mildly dilated and tortuous aorta . No intra-abdominal air on this upright view . No bony abnormality .
    OUTPUT:
    
No radiographic evidence of acute cardiopulmonary process .