{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,18]],"date-time":"2026-07-18T14:00:32Z","timestamp":1784383232328,"version":"3.55.0"},"reference-count":16,"publisher":"SAGE Publications","issue":"10","license":[{"start":{"date-parts":[[2023,10,1]],"date-time":"2023-10-01T00:00:00Z","timestamp":1696118400000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"funder":[{"name":"National Natural Science Funds for Distinguished Young Scholar of China","award":["81625003"],"award-info":[{"award-number":["81625003"]}]}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["J Int Med Res"],"published-print":{"date-parts":[[2023,10]]},"abstract":"<jats:p>Duodenal stenosis caused by upper tract urothelial carcinoma (UTUC) is rare. A 70-year-old male patient was diagnosed with a UTUC invading the duodenum 3 months before admission. Owing to duodenal stenosis, enteral nutrition was necessary. We performed pancreaticoduodenectomy with right nephroureterectomy and right hemicolectomy using a multi-disciplinary approach. Postoperative pathology revealed a UTUC invading the right kidney, duodenum, pancreas, and transverse colon. 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