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This case report describes an exceptionally rare presentation of bilateral complete ureteral duplication with calculi in three out of four ureters and pyonephrosis in one obstructed renal moiety. Although most cases of ureteral duplication are incidental findings, this report highlights a rare instance where bilateral complete duplication presented with symptomatic complications requiring intervention.<\/jats:p>","DOI":"10.1155\/criu\/6380877","type":"journal-article","created":{"date-parts":[[2026,4,16]],"date-time":"2026-04-16T08:38:22Z","timestamp":1776328702000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Calculi in Three of the Four Ureters in a Case of Bilateral Complete Duplication, Complicated by Pyonephrosis in One Obstructed Moiety\u2014A Rare Case Report"],"prefix":"10.1155","volume":"2026","author":[{"ORCID":"https:\/\/orcid.org\/0009-0000-8842-0250","authenticated-orcid":false,"given":"Swanand E.","family":"Chaudhary","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0002-2471-924X","authenticated-orcid":false,"given":"Ved","family":"Mahajan","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6680-3311","authenticated-orcid":false,"given":"Ritvij","family":"Patankar","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0009-0821-4330","authenticated-orcid":false,"given":"Rohit","family":"Nimje","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2026,4,16]]},"reference":[{"key":"e_1_2_8_1_2","first-page":"192","article-title":"Bilateral Complete Duplex Renal Pelvis and Ureters\u2014A Case Report","volume":"4","author":"Pujari D.","year":"2011","journal-title":"International Journal of Anatomical Variations"},{"key":"e_1_2_8_2_2","doi-asserted-by":"publisher","DOI":"10.1186\/s12894-020-00604-7"},{"key":"e_1_2_8_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijscr.2014.11.049"},{"key":"e_1_2_8_4_2","doi-asserted-by":"publisher","DOI":"10.4103\/0974-7796.179241"},{"key":"e_1_2_8_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijscr.2019.06.015"},{"key":"e_1_2_8_6_2","doi-asserted-by":"publisher","DOI":"10.23880\/OAJUN-16000166"},{"key":"e_1_2_8_7_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.urology.2024.06.028"},{"key":"e_1_2_8_8_2","doi-asserted-by":"publisher","DOI":"10.18203\/2320-6012.ijrms20171882"},{"key":"e_1_2_8_9_2","doi-asserted-by":"publisher","DOI":"10.3109\/15513815.2014.959678"},{"key":"e_1_2_8_10_2","doi-asserted-by":"publisher","DOI":"10.1186\/s12894-024-01611-8"},{"key":"e_1_2_8_11_2","doi-asserted-by":"publisher","DOI":"10.1111\/1754-9485.12285"},{"key":"e_1_2_8_12_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.juro.2016.05.090"},{"key":"e_1_2_8_13_2","doi-asserted-by":"publisher","DOI":"10.1089\/end.2018.0041"},{"key":"e_1_2_8_14_2","doi-asserted-by":"publisher","DOI":"10.2147\/RRU.S537984"},{"key":"e_1_2_8_15_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.euros.2023.09.012"}],"container-title":["Case Reports in Urology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1155\/criu\/6380877","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1155\/criu\/6380877","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1155\/criu\/6380877","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,16]],"date-time":"2026-04-16T08:38:23Z","timestamp":1776328703000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1155\/criu\/6380877"}},"subtitle":[],"editor":[{"given":"Tun-Chieh","family":"Chen","sequence":"additional","affiliation":[],"role":[{"role":"editor","vocabulary":"crossref"}]}],"short-title":[],"issued":{"date-parts":[[2026,1]]},"references-count":15,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2026,1]]}},"alternative-id":["10.1155\/criu\/6380877"],"URL":"https:\/\/doi.org\/10.1155\/criu\/6380877","archive":["Portico"],"relation":{},"ISSN":["2090-696X","2090-6978"],"issn-type":[{"value":"2090-696X","type":"print"},{"value":"2090-6978","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,1]]},"assertion":[{"value":"2025-06-02","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-03-23","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-04-16","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"6380877"}}