Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP view of the chest . There is no evidence of free air . Dilation of the colon at the splenic flexures better appreciated on concurrent abdominal radiograph . The lungs are clear . The cardiomediastinal and hilar contours are normal .
    OUTPUT:
    
No evidence of free air . Dilated colon in the splenic flexure , better appreciated on a concurrent abdominal radiograph . These results were discussed with Dr . ___ by Dr . ___ at 6 : 40 a .m . via telephone at the time of findings were discovered .