Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is mild - to - moderately enlarged with a left ventricular configuration . The mediastinal and hilar contours appear unchanged . The lungs appear clear . There are no pleural effusions or pneumothorax . Small - to - moderate osteophytes layer anteriorly along the mid - to - upper thoracic spine .
    OUTPUT:
    
Mild - to - moderate cardiomegaly . No evidence of acute disease .