Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Thoracic aorta is tortuous without focal aneurysmal segment . Hilar contours are normal . Lungs are clear . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
No acute cardiopulmonary process ; specifically , no evidence of pneumonia or malignancy .