Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is mildly enlarged . The mediastinal and hilar contours are within normal limits . Mild prominence of the superior mediastinum probably relates to tortuous vasculature and is unchanged . The lungs are well expanded and clear , without consolidation , pleural effusion , or pneumothorax . There is no evidence of pulmonary edema . No acute osseous abnormality is seen .
    OUTPUT:
    
No evidence of acute cardiopulmonary pathology .