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Updated: Dec 30, 2025
Murine Ileocolic Bowel Resection with Primary Anastomosis
Published on: October 29, 2014
Unusual intraoperative finding of abnormal retroperitoneal ileum: a case report
Johanna C F Willburger1, Daniel C Steinemann1, Markus Von Flüe1
1Department of Visceral Surgery, University Centre for Gastrointestinal and Liver Diseases, St. Clara Hospital and University Hospital Basel, Clarunis, Basel, Switzerland.
Abstract:
A 52-year-old female patient diagnosed with an adenocarcinoma of the sigmoid colon underwent anterior resection with direct anastomosis. Intraoperatively, we found the ileum completely retroperitonealized. Previously, the patient was asymptomatic and no congenital syndromes were diagnosed. The intraoperative finding of abnormal anatomy made the mobilization of the left hemicolon and the vessel ligation more challenging. This anatomical situation is a rare variation due to an embryonic malrotation, which occurs in about 1:500 newborns.
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