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Created page with '* Foreign bodies of all types can be found in the intestines. * While some may pass through posing no problems, others can cause acute obstruction, * Quite common in dogs ** Ra…'
* Foreign bodies of all types can be found in the intestines.
* While some may pass through posing no problems, others can cause acute obstruction,
* Quite common in dogs
** Rare in other species - tend to lodge in the oesophagus or in one of the ruminant [[Stomach and Abomasum - Anatomy & Physiology|stomachs]].)
** Enteroliths can be seen in horses greater than 4 years of age.
*** Are stones consisting of magnesium ammonium phosphate around a central nidus (often a metallic foreign body)
*** Typically lodge at the pelvic flexure or the transverse [[Colon - Anatomy & Physiology|colon]].
* '''Clinical'''
** Obstruction at pylorus produces repeated [[Control of Feeding - Anatomy & Physiology#The Vomit Reflex|vomiting]].
** Obstrustion lower down gives less dramatic effect.
*** Is still a problem if in the middle of the [[Small Intestine - Anatomy & Physiology|small intestine]]s.
*** May be vague signs; some [[Control of Feeding - Anatomy & Physiology#The Vomit Reflex|vomiting]] and off food.
* '''Diagnosis'''
** May not show up well radiographically (unless radio-opaque) for several days.
*** May also be objects that are semi solid or soft, e.g.
**** String
**** Plastic bags
**** Stringy things, like pieces of material- particularly in puppies.
** Make all of intestines have knotted appearance.
** May be seen in horses with baler twine.
* '''Pathogenesis'''
** Smooth, round objects, such as golf balls, lodge especially near the pylorus or lower down.
** Occasionally in cattle (piece of rope or piece of tarpaulin) produces a tangled mass in [[The Rumen - Anatomy & Physiology|rumen]].
** Cause pressure necrosis and eventually perforation.
** Foreign bodies can also be chronic, remaining for long periods of time without causing disturbance.
[[Category:Intestines - Mechanical Obstruction]]
* While some may pass through posing no problems, others can cause acute obstruction,
* Quite common in dogs
** Rare in other species - tend to lodge in the oesophagus or in one of the ruminant [[Stomach and Abomasum - Anatomy & Physiology|stomachs]].)
** Enteroliths can be seen in horses greater than 4 years of age.
*** Are stones consisting of magnesium ammonium phosphate around a central nidus (often a metallic foreign body)
*** Typically lodge at the pelvic flexure or the transverse [[Colon - Anatomy & Physiology|colon]].
* '''Clinical'''
** Obstruction at pylorus produces repeated [[Control of Feeding - Anatomy & Physiology#The Vomit Reflex|vomiting]].
** Obstrustion lower down gives less dramatic effect.
*** Is still a problem if in the middle of the [[Small Intestine - Anatomy & Physiology|small intestine]]s.
*** May be vague signs; some [[Control of Feeding - Anatomy & Physiology#The Vomit Reflex|vomiting]] and off food.
* '''Diagnosis'''
** May not show up well radiographically (unless radio-opaque) for several days.
*** May also be objects that are semi solid or soft, e.g.
**** String
**** Plastic bags
**** Stringy things, like pieces of material- particularly in puppies.
** Make all of intestines have knotted appearance.
** May be seen in horses with baler twine.
* '''Pathogenesis'''
** Smooth, round objects, such as golf balls, lodge especially near the pylorus or lower down.
** Occasionally in cattle (piece of rope or piece of tarpaulin) produces a tangled mass in [[The Rumen - Anatomy & Physiology|rumen]].
** Cause pressure necrosis and eventually perforation.
** Foreign bodies can also be chronic, remaining for long periods of time without causing disturbance.
[[Category:Intestines - Mechanical Obstruction]]