Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate to large hiatal hernia containing small bowel and stomach is identified . Lungs are clear . The cardiomediastinal silhouette , hilar contours , and pleural surfaces are normal . No pneumonia , pneumothorax , pulmonary edema , or pleural effusion .
    OUTPUT:
    
1 . Moderate to large hiatal hernia containing small bowel and stomach . 2 . No acute cardiopulmonary process .