Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post mitral valve replacement . The patient is also status post coronary artery bypass graft surgery , noting surgical clips along the anterior mediastinum to the left of midline . Two surgical clips also project over the left mid hemithorax . The heart is mild - to - moderately enlarged . There is no pleural effusion or pneumothorax . No free air is seen . The lungs appear clear . Small anterior osteophytes are present along the thoracic spine .
    OUTPUT:
    
Cardiomegaly . Status post coronary artery bypass graft surgery and mitral valve replacement . No evidence for acute cardiopulmonary disease or free air .