Changes

[[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)]]

==Description==

==Description==

'''Intussusception''' is the invagination of a segment an intestine into the lumen of the adjoining intestine.  The intussusceptum is the invaginated segment and the intussuscipien is the enveloping segment.  Intussusception most commonly affects young animals.  In order animals, it may be occur due to [[Neoplasia - Pathology|neoplasia]] or [[Post-Mortem Change - Pathology #Agonal Changes|agonal changes]].

'''Intussusception''' is the invagination of one portion of the gastrointestinal tract into the lumen of the adjoining portion.  The intussusceptum is the invaginated segment and the intussuscipien is the enveloping segment.

 

Intussusception results from vigorous contractions due to intestinal irritation, which force a segment of an intestine to teloscope into the lumen of a more relaxed adjacent segment.  A normograde intussusception is the most common, but retrograde intussusception has also been reported.  Intussusception normally occurs due to gastrointestinal disease, although it is often hard to identify the cause.  Parasites, infectious enteritis, metabolic disorders, foreign bodies, history of recent intestinal surgery, intestinal masses have all been known to associate with intussusception.  Chronic intussusception can occur with little haemodynamic changes.

Intussusception results from vigorous contractions due to intestinal irritation, which force a segment of an intestine to teloscope into the lumen of a more relaxed adjacent segment.  A normograde intussusception is the most common, but retrograde intussusception has also been reported.  Intussusception normally occurs due to gastrointestinal disease, although it is often hard to identify the cause.  Parasites, infectious enteritis, metabolic disorders, foreign bodies, history of recent intestinal surgery, intestinal masses have all been known to associate with intussusception.  Chronic intussusception can occur with little haemodynamic changes.

==Signalment==

==Signalment==

*Occur most commonly in dogs

*Occur most commonly in dogs

*75% of cases affect animals under one year of age

*75% of cases affect animals under one year of age

*Breed predisposition:

*Breed predisposition:

==Diagnosis==

==Diagnosis==