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Intussusception (view source)

Revision as of 14:57, 5 July 2010

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[[Image:intussusception.jpg|thumb|right|150px|Diagram of intussuscception (Courtesy of Elspeth Milne)]]
 
[[Image:intussusception.jpg|thumb|right|150px|Diagram of intussuscception (Courtesy of Elspeth Milne)]]
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Telescoping of one segment of the bowel into another which can occur in all species but particularly in young dogs.
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Intussusception can occur in the [[Small Intestine - Anatomy & Physiology|small intestine]], [[Caecum - Anatomy & Physiology|caecum]] or [[Colon - Anatomy & Physiology|colon]].  
 
Intussusception can occur in the [[Small Intestine - Anatomy & Physiology|small intestine]], [[Caecum - Anatomy & Physiology|caecum]] or [[Colon - Anatomy & Physiology|colon]].  
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====Clinical====
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* Intussusception is a less acute type of obstruction. 
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* Produces intermittent [[Diarrhoea|diarrhoea]].
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* Animals go downhill in a few days. 
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* Palpation of abdomen may allow a "Cumberland sausage" effect to be felt.
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** NB abdominal palpation in small animal, rectal palpation in large animal.
      
====Pathogenesis====
 
====Pathogenesis====
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* Proximal intestine invaginates into lower part of intestine.[[Image:intussuceptionphoto.jpg|thumb|right|150px|Intersusception (Courtesy of Bristol BioMed Image Archive)]]
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* Proximal intestine invaginates into distal part of intestine.[[Image:intussuceptionphoto.jpg|thumb|right|150px|Intersusception (Courtesy of Bristol BioMed Image Archive)]]
 
** Takes mesenteric attachment with it.  
 
** Takes mesenteric attachment with it.  
 
* Compression of the mesenteric vessels obstructs venous drainage of the gut, resulting in venous congestion.
 
* Compression of the mesenteric vessels obstructs venous drainage of the gut, resulting in venous congestion.
Eknowles
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