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917 bytes added ,  12:00, 31 May 2010
Created page with '===== Atresia ani ===== right|thumb|125px|<small><center>Pig - atresia ani (Courtesy of Elspeth Milne)</center></small> *A common congenital defect o…'
===== Atresia ani =====
[[Image:atresia ani PM.jpg|right|thumb|125px|<small><center>Pig - atresia ani (Courtesy of Elspeth Milne)</center></small>]]
*A common congenital defect of the lower gastrointestinal tract.
*Both the [[Anus - Anatomy & Physiology|anus]] and [[Rectum - Anatomy & Physiology|rectum]] can be affected.
*Occurs in all species but is most often seen in calves and pigs.

===== Atresia coli =====
*Considered the most common segmental anomaly of the intestine in domestic animals.
*Can affect in particular the spiral [[Colon - Anatomy & Physiology|colon]] of Holstein calves and the small [[Colon - Anatomy & Physiology|colon]] of foals.

===== Atresia ilei =====
*It is less common to see atresia in the [[Small Intestine - Anatomy & Physiology|small intestine]].
*Mostly seen in calves.



[[Category:Intestines - Developmental Pathology]][[Category:Horse]][[Category:Pig]][[Category:Cattle]]
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