Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear stable . The heart is mild to moderately enlarged . There is unfolding of the thoracic aorta . The cardiac , mediastinal and hilar contours appear stable . There is no pleural effusion or pneumothorax . The lungs appear clear . There has been no definite change .
    OUTPUT:
    
Cardiomegaly . No evidence of acute cardiopulmonary disease .