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For carefully selected patients with low-lying rectal cancers, ultralow anterior resection (ULAR) can be an effective alternative to abdominal perineal resection, and together with neoadjuvant radiochemotherapy can provide the opportunity for sphincter preservation. However, ULAR is not without potential postoperative complications, particularly anastomotic dehiscence which increases in likelihood after receiving radiation therapy. While surveillance imaging is not indicated three years beyond initial surgical resection, changes in chro