Editing Large intestine (section)

===Variation===
One variation on the normal anatomy of the colon occurs when extra loops form, resulting in a colon that is up to five metres longer than normal. This condition, referred to as '''redundant colon''', typically has no direct major health consequences, though rarely [[volvulus]] occurs, resulting in obstruction and requiring immediate medical attention.<ref>{{cite web|url=http://www.mayoclinic.com/health/redundant-colon/AN00239/rss=1 |title=Redundant colon: A health concern? |access-date=2007-06-11 |date=2006-10-13 |author=Mayo Clinic Staff |work=Ask a Digestive System Specialist |publisher=MayoClinic.com |archive-url=https://web.archive.org/web/20070929110621/http://www.mayoclinic.com/health/redundant-colon/AN00239/rss%3D1 |archive-date=2007-09-29 |url-status=dead }}</ref><ref>{{cite web |url= http://www.riversideonline.com/health_reference/Questions-Answers/AN00239.cfm |title= Redundant colon: A health concern? (Above with active image links) |work= riversideonline.com |author= Mayo Clinic Staff |access-date= 8 November 2013 |archive-date= 9 November 2013 |archive-url= https://web.archive.org/web/20131109023215/http://www.riversideonline.com/health_reference/Questions-Answers/AN00239.cfm |url-status= dead }}</ref> A significant indirect health consequence is that use of a standard adult [[colonoscope]] is difficult and in some cases impossible when a redundant colon is present, though specialized variants on the instrument (including the pediatric variant) are useful in overcoming this problem.<ref>{{cite journal | last=Lichtenstein | first=Gary R. |author2=Peter D. Park |author3=William B. Long |author4=Gregory G. Ginsberg |author5=Michael L. Kochman  | title=Use of a Push Enteroscope Improves Ability to Perform Total Colonoscopy in Previously Unsuccessful Attempts at Colonoscopy in Adult Patients | journal=The American Journal of Gastroenterology | volume=94 | issue=1 | pages=187–190 | date=18 August 1998 | doi=10.1111/j.1572-0241.1999.00794.x | pmid=9934753 | s2cid=24536782 }} ''Note: single use PDF copy provided free by [[Blackwell Publishing]] for purposes of Wikipedia content enrichment.''</ref>