Development of strangulation ileus associated with the ureter of the transplanted kidney 18 years after kidney transplantation

INTRODUCTION: After kidney transplantation, patients should be treated with caution and monitored for surgical complications. Among the possible surgical complications, strangulation ileus after kidney transplantation is rare. CASE PRESENTATION: A 59‐year‐old woman who had undergone kidney transplantation at 41 years of age presented to our hospital with lower abdominal pain. She was diagnosed with strangulation ileus and underwent emergency surgery. In the lower right abdomen, the small intestine was compressed by cord‐like tissue running from the intraperitoneal space to the retroperitoneal space. We confirmed that the cord‐like tissue was the ureter of the transplanted kidney. The necrotic small intestine was resected, and ureter‐ureteral anastomosis of the ureter of the transplanted kidney was performed. CONCLUSION: All surgical procedures, including ureteroneocystostomy, require careful attention. The occurrence of some postoperative surgical complications can be prevented by carefully performing the kidney transplantation procedure.