Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are significantly dilated loops of bowel better assessed on CT from outside institution compatible with colonic obstruction . There is no evidence of abdominal free air . Lung volumes are low without focal opacities . The heart is not enlarged . There is no pleural effusion or pneumothorax . A single - lead pacemaker is seen in the left upper hemithorax with the leads ending in the right ventricle .
    OUTPUT:
    
No evidence of abdominal free air . Multiple dilated loops of colon compatible with colonic obstruction .