{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,2]],"date-time":"2026-09-02T20:15:38Z","timestamp":1788380138661,"version":"build-2803163510"},"reference-count":8,"publisher":"Oxford University Press (OUP)","issue":"9","license":[{"start":{"date-parts":[[2026,9,2]],"date-time":"2026-09-02T00:00:00Z","timestamp":1788307200000},"content-version":"vor","delay-in-days":1,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,9,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Crossed renal ectopia is a rare congenital anomaly, with non-fused variants being exceptionally uncommon. The management of nephrolithiasis in such kidneys is challenging due to the abnormal anatomy, malrotation, and altered ureteral course. We report a case of a non-fused left crossed ectopic kidney with a 21\u2009\u00d7\u200914.5\u00a0mm with density of 1250 HU renal calculus successfully managed with retrograde intrarenal surgery (RIRS), achieving complete stone clearance (SC). This case highlights the feasibility of RIRS, even in complex renal anomalies with a significant stone burden. A review of the existing literature further supports the expanding role of RIRS in anomalous kidneys.<\/jats:p>","DOI":"10.1093\/omcr\/omag162","type":"journal-article","created":{"date-parts":[[2026,8,21]],"date-time":"2026-08-21T11:51:05Z","timestamp":1787313065000},"source":"Crossref","is-referenced-by-count":0,"title":["Retrograde intrarenal surgery in a non-fused left crossed ectopic kidney with large renal calculus: a case report and review of literature"],"prefix":"10.1093","volume":"2026","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6593-8978","authenticated-orcid":false,"given":"Adeel","family":"Anwaar","sequence":"first","affiliation":[{"name":"Pakistan Kidney and Liver Institute and Research Center, Lahore , 54920, Punjab,","place":["Pakistan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0003-6747-8906","authenticated-orcid":false,"given":"Inam Ul","family":"Haq","sequence":"additional","affiliation":[{"name":"Rashid Latif Medical College, Lahore, 54920, Punjab, \u00a0","place":["Pakistan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Abdul Munim","family":"Khan","sequence":"additional","affiliation":[{"name":"Milat Hospital , Sadiqabad , 64530, Punjab,","place":["Pakistan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Farooq","family":"Hameed","sequence":"additional","affiliation":[{"name":"Urology Suite, Midcity Hospital , Lahore , 54920, Punjab,","place":["Pakistan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9393-1215","authenticated-orcid":false,"given":"Aymar","family":"Akilimali","sequence":"additional","affiliation":[{"name":"Department of Research, Medical Research Circle (MedReC) , Goma ,","place":["Democratic Republic of Congo"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2026,9,2]]},"reference":[{"key":"2026090215274951500_ref1","doi-asserted-by":"publisher","DOI":"10.1097\/MD.0000000000018165","article-title":"Crossed-fused renal ectopia with renal calculi: two case reports and a review of the literature","volume":"98","author":"Cao","year":"2019","journal-title":"Medicine"},{"key":"2026090215274951500_ref2","doi-asserted-by":"publisher","DOI":"10.1002\/ccr3.72488","article-title":"Imaging diagnosis of crossed non-fused renal ectopia with hydronephrosis in a child","volume":"14","author":"Anwaar","year":"2026","journal-title":"Clin Case Reports"},{"key":"2026090215274951500_ref3","doi-asserted-by":"publisher","first-page":"1090","DOI":"10.1089\/end.2020.1064","article-title":"Contralateral coupling during extracorporeal shockwave lithotripsy for stones in ectopic kidney: is it feasible?","volume":"35","author":"Fawzy","year":"2021","journal-title":"J Endourol"},{"key":"2026090215274951500_ref4","doi-asserted-by":"publisher","DOI":"10.7759\/cureus.73294","article-title":"Large renal calculus in a patient with crossed fused ectopic kidney managed with percutaneous nephrolithotomy: a case report","volume":"16","author":"Asabe","year":"2024","journal-title":"Cureus"},{"key":"2026090215274951500_ref5","doi-asserted-by":"publisher","first-page":"e5","DOI":"10.1016\/j.urology.2014.10.013","article-title":"Retrograde intrarenal surgery in cross-fused ectopic kidney","volume":"85","author":"Resorlu","year":"2015","journal-title":"Urology"},{"key":"2026090215274951500_ref6","doi-asserted-by":"publisher","first-page":"910","DOI":"10.18203\/2349-2902.isj20220959","article-title":"Challenging retrograde intrarenal surgery in a pelvic ectopic kidney-an institutional case report and review of literature","volume":"9","author":"Krishnaprasad","year":"2022","journal-title":"Pediatr Surg Int"},{"key":"2026090215274951500_ref7","doi-asserted-by":"publisher","DOI":"10.52338\/aou.2024.4009","article-title":"RIRS-A boon for the crossed ectopic non-fused kidney calculi patients: first case report","author":"Dhangar","year":"2026","journal-title":"Urol Ann"},{"key":"2026090215274951500_ref8","doi-asserted-by":"publisher","DOI":"10.7759\/cureus.23672","article-title":"Delayed bleeding after retrograde intrarenal surgery: a rare complication in ectopic pelvic kidney","volume":"14","author":"Reggio","year":"2022","journal-title":"Cureus"}],"container-title":["Oxford Medical Case Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/academic.oup.com\/omcr\/article-pdf\/2026\/9\/omag162\/70925689\/omag162.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/academic.oup.com\/omcr\/article-pdf\/2026\/9\/omag162\/70925689\/omag162.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,9,2]],"date-time":"2026-09-02T19:27:53Z","timestamp":1788377273000},"score":1,"resource":{"primary":{"URL":"https:\/\/academic.oup.com\/omcr\/article\/doi\/10.1093\/omcr\/omag162\/8780365"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,9,1]]},"references-count":8,"journal-issue":{"issue":"9","published-print":{"date-parts":[[2026,9,1]]}},"URL":"https:\/\/doi.org\/10.1093\/omcr\/omag162","relation":{},"ISSN":["2053-8855"],"issn-type":[{"value":"2053-8855","type":"electronic"}],"subject":[],"published-other":{"date-parts":[[2026,9]]},"published":{"date-parts":[[2026,9,1]]},"article-number":"omag162"}}