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Text replace - "Biliary Tract - Rupture" to "Biliary Tract Rupture"
Also known as: '''''Extra-hepatic Biliary Tract Obstruction — EHBO
Also known as: '''''Extra-hepatic Biliary Tract Obstruction — EHBO
See also: '''[[Biliary Tract - Rupture]]'''
See also: '''[[Biliary Tract Rupture]]'''
==Introduction==
==Introduction==
The biliary tract comprises the [[Gall Bladder - Anatomy & Physiology|gall bladder]], hepatic duct, common bile duct and the duodenal papilla onto which it opens. If any part of this tract is obstructed, the normal flow of [[Bile Formation|bile]] is interrupted resulting in [[Cholestasis, Molecular Pathogenesis|cholestasis]] and [[Icterus#Post-hepatic Jaundice|post-hepatic jaundice]]. If the obstruction is not relieved, the biliary tract may [[Biliary Tract - Rupture|rupture]] to produce a chemical [[Peritonitis|bile peritonitis]].
The biliary tract comprises the [[Gall Bladder - Anatomy & Physiology|gall bladder]], hepatic duct, common bile duct and the duodenal papilla onto which it opens. If any part of this tract is obstructed, the normal flow of [[Bile Formation|bile]] is interrupted resulting in [[Cholestasis, Molecular Pathogenesis|cholestasis]] and [[Icterus#Post-hepatic Jaundice|post-hepatic jaundice]]. If the obstruction is not relieved, the biliary tract may [[Biliary Tract Rupture|rupture]] to produce a chemical [[Peritonitis|bile peritonitis]].
The causes of biliary tract obstruction may be '''intraluminal''' or '''extraluminal''':
The causes of biliary tract obstruction may be '''intraluminal''' or '''extraluminal''':
<u>Extraluminal obstructions:</u>
<u>Extraluminal obstructions:</u>
*[[Pancreatitis|'''Pancreatitis''']] is the most common cause of obstruction in dogs. '''Pancreatic abcesses''' or '''neoplasia''' may also obstruct the flow of bile.
*[[Pancreatitis|'''Pancreatitis''']] is the most common cause of obstruction in dogs. '''Pancreatic abcesses''' or '''neoplasia''' may also obstruct the flow of bile.
*[[Biliary Tract - Rupture|'''Biliary tract rupture''']]
*[[Biliary Tract Rupture|'''Biliary tract rupture''']]
*'''Pyloric''' or '''duodenal mass'''
*'''Pyloric''' or '''duodenal mass'''
*'''Diaphragmatic rupture''' with herniation of parts of the liver may result in exertion of pressure on the biliary tract.
*'''Diaphragmatic rupture''' with herniation of parts of the liver may result in exertion of pressure on the biliary tract.