Abstract
An 8-year-old Quarter Horse stallion presented to the Veterinary Teaching Hospital for evaluation of acute colic and a suspected rectal tear. Clinical examination revealed a nearly circumferential retroperitoneal full-thickness rectal tear. Exploratory laparotomy was performed, and medical management of the tear continued for 6 weeks. Multiple attempts at direct suturing of the tear were unsuccessful. Despite intensive medical management, the horse was not able to defecate, and the tear did not heal adequately, so the horse was humanely euthanized. Necropsy revealed complete obliteration of the muscular layers of the rectum with only a small area of rectal mucosa intact dorsally. There is limited information available on the management of circumferential rectal tears. Based upon this experience and other historical reports, a poor prognosis may be expected for circumferential full-thickness retroperitoneal rectal tears involving the ventral aspect of the rectum.
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