{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,3,12]],"date-time":"2025-03-12T04:38:06Z","timestamp":1741754286044,"version":"3.38.0"},"reference-count":7,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2025,1,23]],"date-time":"2025-01-23T00:00:00Z","timestamp":1737590400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["IJU Case Reports"],"published-print":{"date-parts":[[2025,3]]},"abstract":"<jats:sec><jats:title>Introduction<\/jats:title><jats:p>Postoperative recurrence of chromophobe renal cell carcinoma is rare, and its metastatic process remains unclear. We here report a case of a solitary metastasis in the residual ureter detected 9\u2009years after the primary surgery and discuss its possible recurrence mechanism based on our immunohistochemical study.<\/jats:p><\/jats:sec><jats:sec><jats:title>Case presentation<\/jats:title><jats:p>A 67\u2010year\u2010old woman received nephrectomy for a left renal tumor, which was diagnosed as chromophobe renal cell carcinoma with urinary collecting system invasion. Nine years postoperatively, a tumor was found in the residual ureteral stump and was surgically excised. The recurrent tumor was histologically diagnosed as chromophobe renal cell carcinoma surrounded by normal urothelial cells. On immunohistochemical staining, the tumor cells showed a high expression of uroplakin\u20102, a urothelium\u2010specific marker.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>In our case, highly adhesive uroplakin\u20102\u2010positive cancer cells spilled from the primary site and attached to the residual ureteral stump, growing slowly while being gradually covered by normal urothelial cells.<\/jats:p><\/jats:sec>","DOI":"10.1002\/iju5.12834","type":"journal-article","created":{"date-parts":[[2025,1,24]],"date-time":"2025-01-24T06:55:21Z","timestamp":1737701721000},"page":"154-157","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Late solitary metastasis of chromophobe renal cell carcinoma in the residual ureter"],"prefix":"10.1002","volume":"8","author":[{"ORCID":"https:\/\/orcid.org\/0009-0001-7154-1985","authenticated-orcid":false,"given":"Yusuke","family":"Hakozaki","sequence":"first","affiliation":[{"name":"Department of Urology Fukushima Medical University School of Medicine  Fukushima Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0731-4577","authenticated-orcid":false,"given":"Kanako","family":"Matsuoka","sequence":"additional","affiliation":[{"name":"Department of Urology Fukushima Medical University School of Medicine  Fukushima Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tomoyuki","family":"Koguchi","sequence":"additional","affiliation":[{"name":"Department of Urology Fukushima Medical University School of Medicine  Fukushima Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Junya","family":"Hata","sequence":"additional","affiliation":[{"name":"Department of Urology 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