Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear with no evidence of a consolidation , effusion , or pneumothorax . The heart is at the upper limits of normal . The thoracic aorta is slightly tortuous . Mediastinal silhouette is otherwise within normal limits . No acute fractures are identified .
    OUTPUT:
    
No acute cardiopulmonary process .