Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no focal consolidation , pleural effusion , or pneumothorax . A moderate hiatal hernia is again seen . The cardiomediastinal silhouette is normal . Osseous structures are intact . There are mild degenerative changes in the thoracolumbar spine with mild grade 1 retrolisthesis of L1 on L2 and L2 on L3 .
    OUTPUT:
    
No acute cardiopulmonary process . Moderate hiatal hernia .