title: Narrowing of the proximal jejunal limbs at their passage through the transverse mesocolon: a potential pitfall of laparoscopic Roux-en-Y gastric bypass.
abstract: OBJECTIVE
  We reviewed images obtained in patients who had recently undergone laparoscopic Roux-en-Y gastric bypass procedures, noting radiographic appearances and possible complications.
  
  
  CONCLUSIONS
  In five (45%) of 11 patients, we observed a focal area of circumferential narrowing of the proximal jejunal Roux-en-Y loop. This narrowing corresponded to the site of multiple circumferential sutures from the edge of the hiatus created in the transverse mesocolon to the serosa of the traversing jejunal Roux-en-Y loop as the latter courses superiorly to join the gastric pouch. This narrowing should not be confused with localized ischemia or another disease process.
authors.affiliation: Department of Radiology, The Albert Einstein College of Medicine of the Montefiore Medical Center, J. D. Weiler Hospital, 1825 Eastchester Rd., Bronx, NY 10461, USA. theodorersmith@aol.com
authors.forename: Theodore R
authors.initials: TR
authors.lastname: Smith
authors.forename: Alan P
authors.initials: AP
authors.lastname: White
mesh_terms: D000328:Adult; D000713:Anastomosis, Roux-en-Y; D005260:Female; D015390:Gastric Bypass; D005773:Gastroscopy; D006801:Humans; D007583:Jejunum / Q000000981:diagnostic imaging* / Q000601:surgery; D008297:Male; D011183:Postoperative Complications / Q000000981:diagnostic imaging*; D011859:Radiography