Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A portable view of the chest shows fully expanded and clear lungs . The cardiomediastinal and hilar contours are normal . There is no pleural effusion or pneumothorax . An NG tube ends in the stomach . A partially visualized dilated loop of small bowel is seen in the left upper abdomen .
    OUTPUT:
    
No acute abnormality .