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Created page with 'thumb|right|150px|Diagram of intussuscception (Courtesy of Elspeth Milne) * Telescoping of one segment of the bowel into another. * Occurs in all s…'
[[Image:intussusception.jpg|thumb|right|150px|Diagram of intussuscception (Courtesy of Elspeth Milne)]]
* Telescoping of one segment of the bowel into another.
* Occurs in all species.
** Particularly in young dogs.
* Can occur in the [[Small Intestine - Anatomy & Physiology|small intestine]], [[Caecum - Anatomy & Physiology|caecum]] or [[Colon - Anatomy & Physiology|colon]].
====Clinical====
* Intussusception is a less acute type of obstruction.
* Produces intermittent [[Intestine Diarrhoea - Pathology|diarrhoea]].
* Animals go downhill in a few days.
* Palpation of abdomen may allow a "Cumberland sausage" effect to be felt.
** NB abdominal palpation in small animal, rectal palpation in large animal.
====Pathogenesis====
* Proximal intestine invaginates into lower part of intestine.[[Image:intussuceptionphoto.jpg|thumb|right|150px|Intersusception (Courtesy of Bristol BioMed Image Archive)]]
** Takes mesenteric attachment with it.
* Compression of the mesenteric vessels obstructs venous drainage of the gut, resulting in venous congestion.
** Swelling (oedema/congestion) arises.
*** Inflammatory exudate from serous surface.
**** Fibrinous adhesions form between surfaces making structure irreducible.
* May progress to necrosis and gangrene of the tissue.
* There is often functional obstruction to bowel.
* May rupture, leading to peritonitis and death.
*Associated with anything that raises peristalsis e.g. change in diet, bacterial infection.
** Foreign body
** Intramural abscess/tumour
** Heavy parasitism
** Previous intestinal surgery
** Enteritis
** Other motility disorders.
** Change in diet
** Bacterial infection
====Pathology====
* When operate or at post mortem see large sausage shaped distension of length of intestine.
* Intussusception may occur post mortem
** There are no associated changes
** The condition is easilt reducible.
[[Category:Intestine_-_Physical_Disturbances]]
* Telescoping of one segment of the bowel into another.
* Occurs in all species.
** Particularly in young dogs.
* Can occur in the [[Small Intestine - Anatomy & Physiology|small intestine]], [[Caecum - Anatomy & Physiology|caecum]] or [[Colon - Anatomy & Physiology|colon]].
====Clinical====
* Intussusception is a less acute type of obstruction.
* Produces intermittent [[Intestine Diarrhoea - Pathology|diarrhoea]].
* Animals go downhill in a few days.
* Palpation of abdomen may allow a "Cumberland sausage" effect to be felt.
** NB abdominal palpation in small animal, rectal palpation in large animal.
====Pathogenesis====
* Proximal intestine invaginates into lower part of intestine.[[Image:intussuceptionphoto.jpg|thumb|right|150px|Intersusception (Courtesy of Bristol BioMed Image Archive)]]
** Takes mesenteric attachment with it.
* Compression of the mesenteric vessels obstructs venous drainage of the gut, resulting in venous congestion.
** Swelling (oedema/congestion) arises.
*** Inflammatory exudate from serous surface.
**** Fibrinous adhesions form between surfaces making structure irreducible.
* May progress to necrosis and gangrene of the tissue.
* There is often functional obstruction to bowel.
* May rupture, leading to peritonitis and death.
*Associated with anything that raises peristalsis e.g. change in diet, bacterial infection.
** Foreign body
** Intramural abscess/tumour
** Heavy parasitism
** Previous intestinal surgery
** Enteritis
** Other motility disorders.
** Change in diet
** Bacterial infection
====Pathology====
* When operate or at post mortem see large sausage shaped distension of length of intestine.
* Intussusception may occur post mortem
** There are no associated changes
** The condition is easilt reducible.
[[Category:Intestine_-_Physical_Disturbances]]