{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,27]],"date-time":"2025-11-27T13:19:35Z","timestamp":1764249575877,"version":"3.46.0"},"reference-count":17,"publisher":"BMJ","issue":"11","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Rep"],"accepted":{"date-parts":[[2025,10,30]]},"published-print":{"date-parts":[[2025,11]]},"abstract":"<jats:p>A congenital pelvic kidney is when the organ is located within the pelvis rather than its usual position in the retroperitoneal space of the lumbar region. They are often asymptomatic and therefore usually found incidentally. We present the case of a man in his 60s who presented to our emergency department with left iliac fossa pain and diarrhoea.<\/jats:p>\n                  <jats:p>Contrast CT scanning identified a left congenital pelvic kidney with an obstructing ureteric stone causing severe hydronephrosis. Following successful ureteroscopy, lithotripsy and ureteric stenting, the patient recovered and was discharged home. Although rare, altered renal anatomy can cause atypical presenting symptoms with an otherwise classical pathology of renal stones.<\/jats:p>","DOI":"10.1136\/bcr-2025-269005","type":"journal-article","created":{"date-parts":[[2025,11,27]],"date-time":"2025-11-27T13:15:23Z","timestamp":1764249323000},"page":"e269005","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":0,"title":["Atypical presentation of obstructing urolithiasis in a patient with a congenital pelvic kidney"],"prefix":"10.1136","volume":"18","author":[{"ORCID":"https:\/\/orcid.org\/0009-0007-2471-2052","authenticated-orcid":false,"given":"Jack","family":"Thetford","sequence":"first","affiliation":[{"name":"The Royal Bournemouth Hospital, University Hospitals Dorset NHS Foundation Trust, Bounemouth, Dorset, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0003-4013-0870","authenticated-orcid":false,"given":"Tara","family":"Percival","sequence":"additional","affiliation":[{"name":"The Royal Bournemouth Hospital, University Hospitals Dorset NHS Foundation Trust, Bounemouth, Dorset, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cosmin","family":"Jalba","sequence":"additional","affiliation":[{"name":"The Royal Bournemouth Hospital, University Hospitals Dorset NHS Foundation Trust, Bounemouth, Dorset, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2025,11,27]]},"reference":[{"key":"2025112705151508000_18.11.e269005.1","unstructured":"National Institute of Diabetes and Digestive and Kidney Diseases . Kidney diseases in children: ectopic kidney. Available: https:\/\/www.niddk.nih.gov\/health-information\/kidney-disease\/children\/ectopic-kidney [Accessed 4 Jul 2025]."},{"key":"2025112705151508000_18.11.e269005.2","doi-asserted-by":"crossref","first-page":"B26","DOI":"10.1016\/j.ajog.2021.06.047","article-title":"Pelvic kidney","volume":"225","author":"Chyu","year":"2021","journal-title":"Am J Obstet Gynecol"},{"key":"2025112705151508000_18.11.e269005.3","unstructured":"Bingham G , Leslie SW . Pelvic kidney. National Library of Medicine, StatPearls. Available: https:\/\/www.ncbi.nlm.nih.gov\/books\/NBK563239\/ [Accessed 4 Jul 2024]."},{"key":"2025112705151508000_18.11.e269005.4","unstructured":"Grace Fitzgerald . TeachMe anatomy: development of the urinary system. Available: https:\/\/teachmeanatomy.info\/the-basics\/embryology\/urinary-system\/ [Accessed 4 Jul 2025]."},{"key":"2025112705151508000_18.11.e269005.5","unstructured":"Skandhan A , Amer M , Ashraf A , et al . Radiopaedia.org: ectopic kidney. Available: https:\/\/radiopaedia.org\/articles\/ectopic-kidney-1?lang=gb [Accessed 4 Jul 2025]."},{"key":"2025112705151508000_18.11.e269005.6","unstructured":"Glazer K , Brea IJ , Leslie SW , et al . Ureterolithiasis. StatPearls; 2025. Available: https:\/\/www.ncbi.nlm.nih.gov\/books\/NBK560674\/ [Accessed 4 Jul 2025]."},{"key":"2025112705151508000_18.11.e269005.7","unstructured":"National Institute for Health and Care Excellence . Renal or ureteric colic \u2013 acute. last revised in october 2024. Available: https:\/\/cks.nice.org.uk\/topics\/renal-or-ureteric-colic-acute\/ [Accessed 6 Oct 2025]."},{"key":"2025112705151508000_18.11.e269005.8","doi-asserted-by":"crossref","first-page":"461","DOI":"10.4103\/0970-1591.44248","article-title":"Emergency management of ureteral stones: Recent advances","volume":"24","author":"Osorio","year":"2008","journal-title":"Indian J Urol"},{"key":"2025112705151508000_18.11.e269005.9","doi-asserted-by":"publisher","DOI":"10.3310\/AAFO2475"},{"key":"2025112705151508000_18.11.e269005.10","doi-asserted-by":"crossref","first-page":"46","DOI":"10.1016\/j.eururo.2021.02.044","article-title":"Shockwave Lithotripsy Versus Ureteroscopic Treatment as Therapeutic Interventions for Stones of the Ureter (TISU): A Multicentre Randomised Controlled Non-inferiority Trial","volume":"80","author":"Dasgupta","year":"2021","journal-title":"Eur Urol"},{"key":"2025112705151508000_18.11.e269005.11","unstructured":"National Institute for Health and Care Excellence . Renal and ureteric stones: assessment and management. NICE guideline NG118; 2019. 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