Difference between revisions of "Cholangitis"

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'''Cholangitis''' is the inflammation of the biliary tract.  '''Cholangiohepatitis''' is the inflammation of the biliary tract and the surrounding hepatic parenchyma.  It is typically categorised into [[Cholangitis, Neutrophilic|Neutrophilic Cholangitis]] and [[Cholangitis, Lymphocytic|Lymphocytic Cholangitis]].
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==Introduction==
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Cholangitis describes an inflammation of the biliary tract.  Cholangiohepatitis describes the inflammation of the biliary tract and the surrounding hepatic parenchyma.  It is typically categorised into [[Cholangitis, Neutrophilic|Neutrophilic Cholangitis]] and [[Cholangitis, Lymphocytic|Lymphocytic Cholangitis]].
  
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==Signalment==
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Cholangitis is common in cats, where a periportal hepatocellular necrosis is seen together with
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the presence of neutrophils in the portal area. Cats can be acutely or chronicaly affected, and 
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male, pure bred cats are most overly prepresented.
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The condition is also seen in calves as a secondary condition to bacterial infection, such as Salmonella.
  
*Inflammation of the bile ducts
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===Causes===
 
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*ascending infections from the intestine where stasis of bile flow has developed
**common in cats
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*associated with organisms excreted via the bile such as salmonellosis infection in calves
**calves eg ''Salmonella sp.''
 
  
===Causes===
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==Laboratory Findings==
*ascending infections from the intestine
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Raised ALT and serum bilirubin levels.
**requires stasis of bile flow to develop
 
*associated with organisms excreted via the bile
 
**salmonellosis infection in calves
 
  
==Cats==
 
***cholangitis
 
***periportal hepatocellular necrosis
 
***neutrophils in the portal areas
 
***acute or chronic.
 
***Usually male, pure bred
 
*** Cats more ill than lymphocytic portal hepatitis.
 
***Higher ALT and serum bilirubin levels.
 
  
===Chronic lymphocytic cholangitis===
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==Histology==
*mature cats
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Lymphocytic infiltration of the portal areas is seen, with mild fibrosis and biliary hyperplasia.
====Microscopically====
 
*lymphocytic infiltration of the portal areas
 
*mild fibrosis
 
*biliary hyperplasia
 
  
 
==Test yourself with the Liver Pathology Flashcards==
 
==Test yourself with the Liver Pathology Flashcards==
 
 
[[Liver_Flashcards_-_Pathology|Liver Pathology Flashcards]]
 
[[Liver_Flashcards_-_Pathology|Liver Pathology Flashcards]]
  

Revision as of 18:06, 1 November 2010

Introduction

Cholangitis describes an inflammation of the biliary tract. Cholangiohepatitis describes the inflammation of the biliary tract and the surrounding hepatic parenchyma. It is typically categorised into Neutrophilic Cholangitis and Lymphocytic Cholangitis.

Signalment

Cholangitis is common in cats, where a periportal hepatocellular necrosis is seen together with the presence of neutrophils in the portal area. Cats can be acutely or chronicaly affected, and male, pure bred cats are most overly prepresented.

The condition is also seen in calves as a secondary condition to bacterial infection, such as Salmonella.

Causes

  • ascending infections from the intestine where stasis of bile flow has developed
  • associated with organisms excreted via the bile such as salmonellosis infection in calves

Laboratory Findings

Raised ALT and serum bilirubin levels.


Histology

Lymphocytic infiltration of the portal areas is seen, with mild fibrosis and biliary hyperplasia.

Test yourself with the Liver Pathology Flashcards

Liver Pathology Flashcards