Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The thoracic scoliosis with convexity of the thoracic spine to the right side is unchanged . Both lungs are clear , and there are no lung opacities concerning for pneumonia . There is no pleural abnormality . Severe scoliotic deformity . Assessment of cardiomediastinal structure was limited . Moderate - to - large hiatal hernia has been stable since ___ .
    OUTPUT:
    
1 . No pneumonia . 2 . Moderate - to - large hiatal hernia , stable since ___ .