Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post sternotomy . The heart is mild to moderately enlarged . The patient is also status post anterior and posterior cervical fusions , incompletely characterized . The lungs appear clear . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Cardiomegaly . No evidence of acute cardiopulmonary disease . No significant change .