{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,20]],"date-time":"2026-05-20T17:04:28Z","timestamp":1779296668219,"version":"3.51.4"},"reference-count":11,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2021,9,26]],"date-time":"2021-09-26T00:00:00Z","timestamp":1632614400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2021,9,26]],"date-time":"2021-09-26T00:00:00Z","timestamp":1632614400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["J Med Case Reports"],"published-print":{"date-parts":[[2021,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec>\n                <jats:title>Background<\/jats:title>\n                <jats:p>Fibroepithelial polyps located in the ureter constitute 2\u20136% of all benign tumors in the urinary system. Distinguishing these lesions from transitional cell carcinoma is essential to avoid unnecessary nephroureterectomy.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Case presentation<\/jats:title>\n                <jats:p>A 59-year-old asymptomatic caucasian male patient was enrolled in follow-up for Ta low-grade transitional cell bladder cancer 4\u00a0years ago in our clinic. A suspicious, solid, contrast-enhancing mass 15\u00a0\u00d7\u00a09\u00a0mm in diameter in the anteromedial mid-section of the left kidney, which was causing minimal washout and largely located in the parenchyma, was reported as renal cell carcinoma on computed tomography during routine controls. In the excretory phase, soft-tissue densities of approximately 30\u00a0mm in length, which were located in the distal part of the left ureter at a distance of 40\u00a0mm from the ureterovesical junction, extending towards the lumen suggested a urethral carcinoma. Urothelial lesion was reported as fibroepithelial polyp after histopathological examination. Partial nephrectomy for the mass, which was reported as renal cell carcinoma in the left kidney, was performed in the first postoperative month. Histopathological examination revealed Fuhrman grade 1 papillary type renal cell carcinoma. No recurrence was observed in the first year after treatment.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Conclusions<\/jats:title>\n                <jats:p>Although our patient had a bladder transitional cell carcinoma and a suspicious renal cell carcinoma mass of 15 mm in the ipsilateral kidney, the patient was safeguarded from unnecessary nephroureterectomy early on by cross-sectional and endoscopic imaging of the ureter.<\/jats:p>\n              <\/jats:sec>","DOI":"10.1186\/s13256-021-03070-3","type":"journal-article","created":{"date-parts":[[2021,9,25]],"date-time":"2021-09-25T23:04:35Z","timestamp":1632611075000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["A rare association in a patient with non-muscle invasive bladder cancer: ureteral fibroepithelial polyp and ipsilateral renal cell carcinoma: a case report"],"prefix":"10.1186","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6066-0401","authenticated-orcid":false,"given":"Serkan","family":"Akan","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9717-1209","authenticated-orcid":false,"given":"Caner","family":"Ediz","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2021,9,26]]},"reference":[{"issue":"2","key":"3070_CR1","first-page":"168","volume":"66","author":"P Klezl","year":"2013","unstructured":"Klezl P, Stanc O, Richterova R, Gilbert Z, Zatura F. Benign fibroepithelial polyp of the ureter. Cent Eur J Urol. 2013;66(2):168\u201371.","journal-title":"Cent Eur J Urol."},{"issue":"12","key":"3070_CR2","doi-asserted-by":"publisher","first-page":"2886","DOI":"10.3390\/nu11122886","volume":"11","author":"NK Devaraj","year":"2019","unstructured":"Devaraj NK, Suppiah S, Veettil SK, Ching SM, Lee KW, Menon RK, Soo MJ, Deuraseh I, Hoo FK, Sivaratnam D. The effects of probiotic supplementation on the incidence of diarrhea in cancer patients receiving radiation therapy: a systematic review with meta-analysis and trial sequential analysis of randomized controlled trials. Nutrients. 2019;11(12):2886.","journal-title":"Nutrients"},{"issue":"3","key":"3070_CR3","doi-asserted-by":"publisher","first-page":"206","DOI":"10.1590\/0100-3984.2017.0214","volume":"52","author":"TK Tibana","year":"2019","unstructured":"Tibana TK, Santos RFT, Said LAM, Marchiori E, Nunes TF. Fibroepithelial polyp of the ureter: the value of magnetic resonance imaging of the urinary tract in diagnosis and therapeutic planning. Radiol Bras. 2019;52(3):206\u2013207. https:\/\/doi.org\/10.1590\/0100-3984.2017.0214.","journal-title":"Radiol Bras"},{"key":"3070_CR4","unstructured":"Sauter G, Algaba F, Amin M, et al. Tumors of the urinary system. In: World Health Organization classification of tumors: pathology and genetics of tumors of the urinary system and male genital organs. Lyon, France: IARC Press; 2004. pp. 149\u201353."},{"issue":"5","key":"3070_CR5","doi-asserted-by":"publisher","first-page":"349","DOI":"10.1089\/end.1997.11.349","volume":"11","author":"GJ Faerber","year":"1997","unstructured":"Faerber GJ, Ahmed MM, Marcovich R, Crisco CP, Belville WD. Contemporary diagnosis and treatment of fibroepithelial ureteral polyp. J Endourol. 1997;11(5):349\u201351.","journal-title":"J Endourol"},{"issue":"6","key":"3070_CR6","doi-asserted-by":"publisher","first-page":"2252","DOI":"10.1016\/S0022-5347(01)64738-4","volume":"157","author":"A Zervas","year":"1997","unstructured":"Zervas A, Rassidakis G, Nakopoulou L, Mitropoulos D, Dimopoulos C. Transitional cell carcinoma arising from a fibroepithelial ureteral polyp in a patient with duplicated upper urinary tract. J Urol. 1997;157(6):2252\u20133.","journal-title":"J Urol"},{"issue":"5","key":"3070_CR7","doi-asserted-by":"publisher","first-page":"810","DOI":"10.1016\/s0090-4295(03)00691-5","volume":"62","author":"JS Lam","year":"2003","unstructured":"Lam JS, Bingham JB, Gupta M. Endoscopic treatment of fibroepithelial polyps of the renal pelvis and ureter. Urology. 2003;62(5):810\u20133. https:\/\/doi.org\/10.1016\/s0090-4295(03)00691-5","journal-title":"Urology"},{"issue":"2","key":"3070_CR8","doi-asserted-by":"publisher","first-page":"413","DOI":"10.1016\/j.urology.2005.08.020","volume":"67","author":"RI Carey","year":"2006","unstructured":"Carey RI, Bird VG. Endoscopic management of 10 separate fibroepithelial polyps arising in a single ureter. Urology. 2006;67(2):413\u20135.","journal-title":"Urology"},{"issue":"9\u201310","key":"3070_CR9","doi-asserted-by":"publisher","first-page":"E631","DOI":"10.5489\/cuaj.2878","volume":"9","author":"DJ Ludwig","year":"2015","unstructured":"Ludwig DJ, Buddingh KT, Kums JJ, Kropman RF, Roshani H, Hirdes WH. Treatment and outcome of fibroepithelial ureteral polyps: a systematic literature review. Can Urol Assoc J. 2015;9(9\u201310):E631\u20137.","journal-title":"Can Urol Assoc J"},{"issue":"2","key":"3070_CR10","doi-asserted-by":"publisher","first-page":"217","DOI":"10.1007\/s00261-001-0066-z","volume":"27","author":"TR Williams","year":"2002","unstructured":"Williams TR, Wagner BJ, Corse WR, Vestevich JC. Fibroepithelial polyps of the urinary tract. Abdom Imaging. 2002;27(2):217\u201321.","journal-title":"Abdom Imaging"},{"issue":"3","key":"3070_CR11","first-page":"393","volume":"21","author":"C Xu","year":"2013","unstructured":"Xu C, Zhang Z, Ye H, Wu C, Zhang C, Zhang Y, et\u00a0al. Imaging diagnosis and endoscopic treatment for ureteral fibroepithelial polyp prolapsing into the bladder. J Xray Sci Technol. 2013;21(3):393\u20139.","journal-title":"J Xray Sci Technol"}],"container-title":["Journal of Medical Case Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1186\/s13256-021-03070-3.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/article\/10.1186\/s13256-021-03070-3\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1186\/s13256-021-03070-3.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2021,9,25]],"date-time":"2021-09-25T23:10:15Z","timestamp":1632611415000},"score":1,"resource":{"primary":{"URL":"https:\/\/jmedicalcasereports.biomedcentral.com\/articles\/10.1186\/s13256-021-03070-3"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,9,26]]},"references-count":11,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2021,12]]}},"alternative-id":["3070"],"URL":"https:\/\/doi.org\/10.1186\/s13256-021-03070-3","relation":{},"ISSN":["1752-1947"],"issn-type":[{"value":"1752-1947","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021,9,26]]},"assertion":[{"value":"27 July 2021","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"19 August 2021","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"26 September 2021","order":3,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}},{"order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"All procedures performed in this study were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. Informed consent was obtained from individual participant included in the study.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval and consent to participate"}},{"value":"Written informed consent was obtained from the patient for publication of this case report and any accompanying images. A copy of the written consent is available for review by the Editor-in-Chief of this journal.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}},{"value":"The authors declare that they have no conflict of interest.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"475"}}