Difference between revisions of "Category:Hepatitis, Bacterial"

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====Salmonellosis====
+
====[[Salmonellosis]]====
*''Salmonella dublin''
 
*calves
 
=====Clinical=====
 
*fever
 
*dehydration
 
*[[Diarrhoea|diarrhoea]]
 
=====Gross=====
 
*severe, often haemorrhagic, inflammation in the [[Ileum - Anatomy & Physiology|ileum]]
 
*'''paratyphoid nodules''' - pale foci of necrosis in the [[Liver - Anatomy & Physiology|liver]]
 
=====Microscopically=====
 
*foci of hepatocytic necrosis
 
*mixed mononuclear inflammatory cell infiltrate
 
NB: small foci of hepatocytic necrosis are often found as incidental lesions at post mortem examination
 
  
 
====Other bacteria causing liver lesions====
 
====Other bacteria causing liver lesions====

Revision as of 14:17, 7 June 2010

Hepatitis, Bacterial

  • bacteria can enter the liver through a variety of routes
    • direct implantation
    • direct extension from disease in adjacent tissues of supportive peritonitis
    • haematogenously
      • via the umbilical vein from an infected umbilicus
      • via the portal vein in the alimentary tract
      • via the hepatic artery in bacteraemias and septicaemias
      • via the bile ducts
  • the liver may show microscopic evidence of involvement in a large variety of systemic infections
  • these can be accompanied by jaundice
  • the changes in the liver are diffuse with many small areas of necrosis surrounded by neutrophils and lymphocytes
    • eg Salmonellosis or Listeriosis


Bacillary Haemoglobinuria


Tyzzer's Disease



Leptospirosis - Cats and Dogs

Salmonellosis

Other bacteria causing liver lesions

Mycobacterium tuberculosis
  • in all species
  • causes granulomas
Actinobacillus equuli
  • foals
  • bacteria from the septicaemia localise in the liver and other tissues, including the kidney
Nocardia species
  • dogs
  • cause pyogranulomatous foci

Pages in category "Hepatitis, Bacterial"

The following 8 pages are in this category, out of 8 total.