{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,5]],"date-time":"2026-02-05T19:49:46Z","timestamp":1770320986744,"version":"3.49.0"},"reference-count":7,"publisher":"Oxford University Press (OUP)","issue":"4","license":[{"start":{"date-parts":[[2022,4,21]],"date-time":"2022-04-21T00:00:00Z","timestamp":1650499200000},"content-version":"vor","delay-in-days":20,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2022,4,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>Giant hydronephrosis is an ultimate rare urologic entity; even rarer when it is secondary to a duplex collecting system. Duplex collecting system is a common urologic anomaly with a wide range of clinical symptoms and a variety of associated urologic abnormalities such as an ectopic ureter, ureterocele, vesicoureteral reflux and ureteropelvic junction obstruction. This report presents a case of an 8-year-old boy who had a bilateral duplex collecting system that was revealed accidentally by a bilateral severe hydronephrosis. The duplication was complete on the left side and partial on the right with a right ectopic ureteral orifice, in addition to a bilateral vesicoureteral reflux. The vesicoureteral reflux retreated completely in the left side after using a urethral catheter for 6\u00a0months, while the decision of performing a surgical operation for the right side was made.<\/jats:p>","DOI":"10.1093\/omcr\/omac034","type":"journal-article","created":{"date-parts":[[2022,4,21]],"date-time":"2022-04-21T09:24:06Z","timestamp":1650533046000},"source":"Crossref","is-referenced-by-count":4,"title":["Giant hydronephrosis secondary to an ectopic ureter associated with bilateral duplex collecting system: a case report"],"prefix":"10.1093","volume":"2022","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9734-2522","authenticated-orcid":false,"given":"Muhamad Sinan","family":"Muhamad","sequence":"first","affiliation":[{"name":"Division of Urology, Department of Surgery, Tishreen University Hospital, Latakia, Syria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0256-2480","authenticated-orcid":false,"given":"Mohammad Anas","family":"Mousa","sequence":"additional","affiliation":[{"name":"Division of Urology, Department of Surgery, Tishreen University Hospital, Latakia, Syria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4210-556X","authenticated-orcid":false,"given":"Majdy","family":"Oukan","sequence":"additional","affiliation":[{"name":"Division of Urology, Department of Surgery, Tishreen University Hospital, Latakia, Syria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1634-2430","authenticated-orcid":false,"given":"Ali","family":"Razzok","sequence":"additional","affiliation":[{"name":"Division of Urology, Department of Surgery, Tishreen University Hospital, Latakia, Syria"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[2022,4,19]]},"reference":[{"key":"2022042109235677400_ref1","first-page":"811","article-title":"Giant hydronephrosis: report of 4 cases with review of the literature","volume":"89","author":"Chiang","year":"1990","journal-title":"J Formos Med Assoc"},{"key":"2022042109235677400_ref2","doi-asserted-by":"crossref","first-page":"19","DOI":"10.1080\/014850100409972","article-title":"Giant hydronephrosis of a duplex system associated with ureteral ectopia: a cause of retrograde ejaculation","volume":"45","author":"Lee","year":"2000","journal-title":"Arch Androl"},{"key":"2022042109235677400_ref3","doi-asserted-by":"crossref","first-page":"128","DOI":"10.1186\/s13256-019-2058-z","article-title":"Bilateral duplex collecting system with bilateral vesicoureteral reflux: a case report","volume":"13","author":"Yonli","year":"2019","journal-title":"J Med Case Rep"},{"key":"2022042109235677400_ref4","doi-asserted-by":"crossref","first-page":"83","DOI":"10.1186\/s12894-020-00652-z","article-title":"A rare case of herniated duplex collecting system causing obstructive uropathy","volume":"20","author":"El Mouhayyar","year":"2020","journal-title":"BMC Urol"},{"key":"2022042109235677400_ref5","doi-asserted-by":"crossref","first-page":"2254","DOI":"10.18203\/2320-6012.ijrms20171882","article-title":"Unilateral duplex collecting system with incomplete duplication of ureter \u2013 a case report","volume":"2017","author":"Nagpal","year":"2017","journal-title":"Int J Res Med Sci"},{"key":"2022042109235677400_ref6","first-page":"bcr2013009115","article-title":"Duplicated pyelocaliceal system with partial duplication of ureter","volume":"2013","author":"Husain","year":"2013","journal-title":"Case Reports"},{"key":"2022042109235677400_ref7","doi-asserted-by":"crossref","first-page":"328","DOI":"10.1016\/j.radcr.2016.08.015","article-title":"Recurrent urinary tract infections in an adult with a duplicated renal collecting system","volume":"11","author":"Raja","year":"2016","journal-title":"Radiol Case Rep"}],"container-title":["Oxford Medical Case 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