Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is mildly enlarged . A moderate size hiatal hernia is re - demonstrated . Mediastinal and hilar contours are otherwise unchanged . Pulmonary vasculature is normal . Atelectasis is demonstrated both lower lobes . No focal consolidation , pleural effusion or pneumothorax is identified . Levoscoliosis of the thoracic spine with mild multilevel degenerative changes is re - demonstrated .
    OUTPUT:
    
No acute cardiopulmonary abnormality . Moderate size hiatal hernia .