Editing Bile (section)

===Obstruction===
Biliary obstruction refers to a condition when [[bile duct]]s which deliver bile from the gallbladder or liver to the duodenum become obstructed. The blockage of bile might cause a buildup of [[bilirubin]] in the [[bloodstream]] which can result in [[jaundice]]. There are several potential causes for biliary obstruction including gallstones, cancer,<ref>{{Cite journal |last1=Boulay |first1=Brian R |last2=Birg |first2=Aleksandr |date=2016-06-15 |title=Malignant biliary obstruction: From palliation to treatment |journal=World Journal of Gastrointestinal Oncology |volume=8|issue=6|pages=498–508 |doi=10.4251/wjgo.v8.i6.498 |issn=1948-5204 |pmc=4909451|pmid=27326319 |doi-access=free }}</ref> trauma, [[choledochal cysts]], or other benign causes of bile duct narrowing.<ref>{{Cite journal |last1=Shanbhogue |first1=Alampady Krishna Prasad |last2=Tirumani|first2=Sree Harsha |last3=Prasad |first3=Srinivasa R. |last4=Fasih |first4=Najla|last5=McInnes |first5=Matthew |date=2011-08-01 |title=Benign Biliary Strictures: A Current Comprehensive Clinical and Imaging Review|journal=American Journal of Roentgenology |volume=197 |issue=2 |pages=W295–W306 |doi=10.2214/AJR.10.6002 |pmid=21785056 |issn=0361-803X}}</ref> The most common cause of bile duct obstruction is when gallstone(s) are dislodged from the gallbladder into the cystic duct or common bile duct resulting in a blockage. A blockage of the gallbladder or [[cystic duct]] may cause [[cholecystitis]]. If the blockage is beyond the confluence of the pancreatic duct, this may cause gallstone [[pancreatitis]]. In some instances of biliary obstruction, the bile may become infected by bacteria resulting in [[ascending cholangitis]].