Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is moderately enlarged . Mitral calcifications are prominent along the annulus . The cardiac , mediastinal and hilar contours appear unchanged including tortuosity of the aorta and calcification along the arch . There is no pleural effusion or pneumothorax . The lungs appear clear . Moderate rightward convex curvature centered along the mid thoracic spine . The bones are probably demineralized .
    OUTPUT:
    
Unchanged cardiac enlargement . No evidence of acute disease .