Difference between revisions of "Category:Enteritis, Fibrinous/Haemorrhagic"

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Includes:[[Lamb Dysentery]][[Struck]]
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Includes:[[Lamb Dysentery]]
  
===[[Lamb Dysentery]] (Enterotoxaemia with Blood)===
+
[[Struck]]
  
* [[:Category:Enteropathogenic and Enterotoxaemic Clostridia|''Clostridium perfringens'']] causes very severe acute haemorrhagic enteritis.
+
[[Lamb Dysentery]]  
** Usually affects young farm animals
 
*** May also be seen in pets.
 
* Type B [[:Category:Enteropathogenic and Enterotoxaemic Clostridia|''Clostridium perfringens'']] infection of lambs leads to '''lamb dysentery'''. 
 
  
====Clinical====
 
  
* Lamb dysentery is usually seen in lambs under 2 weeks of age.
 
** Related to being kept in a cold, dirty environment, with build-up of infection during the lambing season. 
 
* Lambs may produce bloodstained [[Intestine Diarrhoea - Pathology|diarrhoea]] before death, but they often die before this effect is apparent.
 
* Diagnosed by culturing contents of gut.
 
 
====Pathology====
 
 
=====Gross=====
 
 
* The gut is blown and distended with foamy ,bloody contents.
 
* Sometimes ulceration with perforation and fibrinousperitonitis is seen.
 
* Focal or diffuse congestion and haemorrhages.
 
 
=====Histological=====
 
 
*Coagulative necrosis of villi.
 
* Oedema.
 
* Haemorrhage.
 
* Influx of inflammatory cells in the lamina propria and submucosa.
 
 
 
====Similar Conditions====
 
 
* '''Piglets''' show similar disease caused by [[:Category:Enteropathogenic and Enterotoxaemic Clostridia|''Clostridium perfringens'']] type C (and sometimes type B)
 
** May look similar to a volvulus but with no twist present.
 
* In '''adult sheep''' [[:Category:Enteropathogenic and Enterotoxaemic Clostridia|''Clostridium perfringens'']] type B infection causes '''Struck'''.
 
** Enterotoxigenic gastritis.
 
** Acute sudden death with haemorrhagic enteritis
 
** Haemorrhagic enteritis is not as severe as in lambs, and tends to be more patchy.
 
  
 
===[[Colitis X]]===
 
===[[Colitis X]]===

Revision as of 21:35, 1 June 2010

Pathology

  • The mucosa eroded to produce lesions of darkish-red submucosa covered in dry, crumbly fibrin.
  • Is usually caused by severe damage due to secondary bacterial infection following an earlier milder insult.
  • Tends to be more severe in the lower small intestine and upper large intestine.
    • Many severe infections tend to get worse further down the gut.
    • In the lower aprt of the bowel, where the inflammation is more severe, disease is more anaerobic.
      • Lesions are caused by anaerobic organisms- convert mild diseases into more serious disease.

Salmonellosis

Swine Dysentery

Parvovirus Enteritis

Septicaemia and Enteritis, Bacterial


Includes:Lamb Dysentery

Struck

Lamb Dysentery


Colitis X

  • Affects the horse.
  • Sudden onset with haemorrhages throughout body (shock) and sometimes acute foul smelling diarhoea.
  • colon is acutely haemorhagic and oedematous with mucosal necrosis.
  • Associated with Clostridium perfringens.
  • Possibly an enterotoxaemia.

Pages in category "Enteritis, Fibrinous/Haemorrhagic"

The following 6 pages are in this category, out of 6 total.