3.1 Case 1
Twenty-one days post-marsupialization, the colt was re-presented for persistent drainage from the marsupialization site. The site was open and draining, though granulation tissue was present within the site. The omphalectomy incision was warm on palpation but otherwise normal. Ultrasonographic evaluation showed an enlarged umbilical vein coursing to the marsupialization site. An elastic tape abdominal bandage was placed over the marsupialization site to reduce risk of hernia formation.
Three months post-marsupialization, the colt developed diarrhea and extreme pyrexia per the owner. The foal was en route for evaluation but died prior to arrival. The cause of death was determined to be moderate acute fibrinous peritonitis at necropsy. Pathologic examination also revealed a visible focal outpouching of the skin, 5 cm diameter, on the anteroventral abdominal midline at the site of the previous umbilical vein marsupialization with reducible, non-strangulating herniated small intestine. There were firm fibrous adhesions of the proximal ileum and jejunum to the herniated site.