Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . There is no pneumonia . No large pleural effusion or pneumothorax . Cardiomediastinal silhouette and hila are normal . There is dilated large bowel loop in the left upper quadrant .
    OUTPUT:
    
No acute cardiothoracic process . Dilated left upper quadrant large bowel loop .