Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . The cardiomediastinal silhouette , hilar contours , and pleural surfaces are normal . There is elongation of the descending aorta . No pulmonary edema , pleural effusions , or pneumothorax . No focal consolidations are seen .
    OUTPUT:
    
No pneumonia or acute cardiopulmonary process .