Changes

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]]'''

==Description==

==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 prognosis depends on the cause of the obstruction but affected animals are often very ill.   

The prognosis depends on the cause of the obstruction but affected animals are often very ill.   

[[File:CABI logo.jpg|left|90px]]

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[http://www.cabdirect.org/search.html?q=%28title%3A%28%22biliary+tract%22%29+AND+ab%3A%28obstruction%29%29+OR+title%3A%28EHBO%29 Biliary tract obstruction publications]

[http://www.cabdirect.org/search.html?q=%28title%3A%28%22biliary+tract%22%29+AND+ab%3A%28obstruction%29%29+OR+title%3A%28EHBO%29 Biliary tract obstruction publications]

==References==

==References==

{{review}}

{{review}}

[[Category:Gall_Bladder_and_Tract_-_Pathology]]

[[Category:Gall_Bladder_and_Tract_-_Pathology]]

[[Category:Gall Bladder and Tract Diseases - Dog]][[Category:Gall Bladder and Tract Diseases - Cat]][[Category:Biliary Diseases - Cattle]][[Category:Biliary Diseases - Pig]]

[[Category:Gall Bladder and Tract Diseases - Dog]][[Category:Gall Bladder and Tract Diseases - Cat]][[Category:Biliary Diseases - Cattle]][[Category:Biliary Diseases - Pig]]

[[Category:Expert_Review - Small Animal]]

[[Category:Expert_Review - Small Animal]]

[[Category:Liver Diseases - Horse]]

[[Category:Liver Diseases - Horse]]