Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were provided . The heart is mildly enlarged . The lungs appear clear without signs of pneumonia or overt CHF . No effusion or pneumothorax is seen . The mediastinal contour is normal . Bony structures appear intact .
    OUTPUT:
    
Mild cardiomegaly , otherwise normal .