Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is again moderately enlarged . The cardiac , mediastinal and hilar contours appear stable . There is no pleural effusion or pneumothorax . The lungs appear clear . Upper zone redistribution of pulmonary vascularity is similar to less striking compared to the prior examination . Mild rightward convex curvature is centered along mid to lower thoracic spine .
    OUTPUT:
    
No evidence of acute disease .