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===Causes===
{{unfinished}}
*parasites
*choleliths (gall stones)
==Description==
**rare
The biliary tract comprises the [[Gall Bladder - Anatomy & Physiology|gall bladder]], hepatic duct, common bile duct and the duodenal papillae 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]]. If the obstruction is not relieved, the biliary tract may [[Biliary Tract - Rupture|rupture]] to produce a chemical [[Peritonitis|bile peritonitis]].
*compression of the ducts by nearby inflammatory and neoplastic processes
The causes of biliary tract obstruction may be '''intraluminal''' or '''extraluminal''':
*Intraluminal
**parasites
**choleliths (gall stones)
**Mucocoele
*Extraluminal
**compression of the ducts by nearby inflammatory and neoplastic processes
==Diagnosis==
==Treatment==
==Prognosis==
==References==
[[Category:Gall_Bladder_and_Tract_-_Pathology]]
[[Category:Gall_Bladder_and_Tract_-_Pathology]]
[[Category:To_Do_-_James]]
[[Category:To_Do_-_James]]
[[Category:Dog]][[Category:Cat]][[Category:Horse]][[Category:Cattle]][[Category:Pig]]