Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear but hyperexpanded , with increased AP diameter . No evidence of hiatal hernia . Cardiomediastinal contour is unremarkable . In the partially visualized upper abdomen , only on the lateral view , 2 air - fluid levels are seen , presumably within bowel . Abdominal plain films are recommended for further evaluation .
    OUTPUT:
    
No acute cardiopulmonary process . Partially visualized air-fluid levels on the lateral view warrants further evaluation via abdominal plain films .