Changes

====== Foreign Bodies ======

====== Foreign Bodies ======

*Foreign bodies of all types can be found in the intestines.  While some may pass through posing no problems, others can cause acute obstruction, pressure necrosis and eventually perforation.  Foreign bodies can also be chronic, remaining for long periods of time without causing disturbance.

*Foreign bodies of all types can be found in the intestines.  While some may pass through posing no problems, others can cause acute obstruction, pressure necrosis and eventually perforation.  Foreign bodies can also be chronic, remaining for long periods of time without causing disturbance.

*Enteroliths, stones consisting of magnesium ammonium phosphate around a central nidus (often a metallic foreign body) occur mostly in horses.  Typically, they lodge at the pelvic flexure or the transverse colon and affect horses greater than 4 years of age.

*Enteroliths, stones consisting of magnesium ammonium phosphate around a central nidus (often a metallic foreign body) occur mostly in horses greater than 4 years of age.  Typically, they lodge at the pelvic flexure or the transverse colon.

====== Impaction ======

====== Impaction ======