Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette size is normal . The mediastinal and hilar contours are unremarkable . The lungs are clear and the pulmonary vascularity is normal . No pleural effusion or pneumothorax is present . There is marked gaseous distention of the bowel loops within the abdomen .
    OUTPUT:
    
No acute cardiopulmonary abnormality . Mild gaseous distention of the bowel loops of bowel .