Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is again moderately enlarged . The mediastinal and hilar contours appear unchanged . There is no pleural effusion or pneumothorax . The lungs appear clear . A ventriculoperitoneal shunt catheter courses over the right side of the hemithorax , as before .
    OUTPUT:
    
Stable cardiomegaly . No evidence of acute cardiopulmonary disease .