Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size remains moderately enlarged . Large hiatal hernia is re - demonstrated . Mediastinal and hilar contours are unchanged . Pulmonary vasculature is normal . There is no focal consolidation , pleural effusion or pneumothorax . No subdiaphragmatic gas is visualized . Moderate multilevel degenerative changes are seen within the imaged thoracic spine .
    OUTPUT:
    
Large hiatal hernia . No acute cardiopulmonary abnormality otherwise demonstrated .