Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Epicardial pacing wire projects over the left paraspinous region . The heart size is within normal limits . Mediastinal and hilar contours appear unremarkable . The lungs are clear . There is no pleural effusion or pneumothorax . A small amount of free air under the right hemidiaphragm , may be from to recent laparotomy , but a small bowel perforation can not be excluded . Additionally , large loops of small bowel are seen , measuring up to 5 cm , could signal a small bowel obstruction .
    OUTPUT:
    
1 . No evidence of pneumonia . 2 . Small amount of subdiaphragmatic free air , possibly postsurgical , but bowel perforation is not excluded . 3 . Small bowel dilated , could be obstructed ; KUB has been ordered . Findings were discussed with Dr . ___ at ___ :___ on ___ by ___ ___ over the phone .