{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,8,28]],"date-time":"2025-08-28T07:10:12Z","timestamp":1756365012735,"version":"3.44.0"},"reference-count":14,"publisher":"BMJ","issue":"8","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Rep"],"accepted":{"date-parts":[[2025,7,23]]},"published-print":{"date-parts":[[2025,8]]},"abstract":"<jats:p>Eosinophilic pelvi-ureteritis is an uncommon inflammatory condition characterised by eosinophil infiltration in the urinary tract, which can lead to varied clinical presentations ranging from urinary obstruction to reflux. Here, we report the case of a boy in early childhood initially diagnosed with right-sided pelvi-ureteric junction (PUJ) obstruction (PUJO) presenting as an abdominal lump with gross hydronephrosis. The patient underwent laparoscopic pyeloplasty over a double-J stent. Postoperatively, the patient exhibited features of recurrent PUJO after stent removal. The patient was taken up for redo-laparoscopic pyeloplasty, and intraoperatively, a polypoidal growth was identified obstructing the PUJ, which, on histopathological analysis, revealed eosinophilic infiltration. Laboratory evaluation showed peripheral eosinophilia. Medical management with corticosteroids, antihistamines and antihelminthics was initiated. At 1-year follow-up, the patient was asymptomatic with preserved renal function. This case highlights eosinophilic pelvi-ureteritis as a rare cause of recurrent PUJO and underscores the importance of a combined surgical and medical approach for effective management.<\/jats:p>","DOI":"10.1136\/bcr-2024-264363","type":"journal-article","created":{"date-parts":[[2025,8,5]],"date-time":"2025-08-05T18:20:15Z","timestamp":1754418015000},"page":"e264363","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":0,"title":["Recurrent pelvi-ureteric junction obstruction due to eosinophilic pelvi-ureteritis"],"prefix":"10.1136","volume":"18","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5270-0522","authenticated-orcid":false,"given":"Prashant","family":"Kothari","sequence":"first","affiliation":[{"name":"Paediatric Surgery, All India Institute of Medical Sciences Rishikesh, Rishikesh, Uttarakhand, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Enono","family":"Yhoshu","sequence":"additional","affiliation":[{"name":"Pediatric Surgery, All India Institute of Medical Sciences Rishikesh, Dehradun, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Deepali","family":"Saxena","sequence":"additional","affiliation":[{"name":"Pathology, All India Institute of Medical Sciences Rishikesh, Rishikesh, Uttarakhand, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Intezar","family":"Ahmed","sequence":"additional","affiliation":[{"name":"Paediatric Surgery, All India Institute of Medical Sciences Rishikesh, Rishikesh, Uttarakhand, India"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2025,8,5]]},"reference":[{"key":"2025082723515377000_18.8.e264363.1","article-title":"Eosinophilic Ureteritis in a Child With Ureteropelvic Junction Obstruction and Vesicoureteral Reflux","volume":"12","author":"Stormont","year":"2020","journal-title":"Cureus"},{"key":"2025082723515377000_18.8.e264363.2","doi-asserted-by":"crossref","first-page":"642","DOI":"10.1016\/j.jpurol.2022.08.025","article-title":"A systematic review and metaanalysis of open, conventional laparoscopic and robot-assisted laparoscopic techniques for re-do pyeloplasty for recurrent uretero pelvic junction obstruction in children","volume":"18","author":"Chandrasekharam","year":"2022","journal-title":"J Pediatr Urol"},{"key":"2025082723515377000_18.8.e264363.3","doi-asserted-by":"crossref","first-page":"294","DOI":"10.4103\/0970-1591.120110","article-title":"Management of secondary pelviureteric junction obstruction","volume":"29","author":"Rogers","year":"2013","journal-title":"Indian J Urol"},{"key":"2025082723515377000_18.8.e264363.4","doi-asserted-by":"crossref","first-page":"248","DOI":"10.12688\/f1000research.130402.1","article-title":"Case Report: A Rare Case of Eosinophilic Ureteritis in a Woman with Reccuring Bilateral Ureteric Strictures causing Hydroureteronephrosis","volume":"12","author":"Matondang","year":"2023","journal-title":"F1000Res"},{"key":"2025082723515377000_18.8.e264363.5","doi-asserted-by":"crossref","first-page":"705","DOI":"10.1089\/end.2017.0113","article-title":"Correlation of Bladder Histopathologic Changes Due to Double-J Stenting to the Period of Stenting: A Preliminary Study","volume":"31","author":"Aboutaleb","year":"2017","journal-title":"J Endourol"},{"key":"2025082723515377000_18.8.e264363.6","doi-asserted-by":"crossref","DOI":"10.1016\/j.heha.2025.100118","article-title":"Soil-transmitted helminth infections among preschool- and school-aged children in India: A systematic review and meta-analysis of prevalence, risk factors and intervention strategies","volume":"13","author":"Muoghalu","year":"2025","journal-title":"Hyg Environ Health Adv"},{"key":"2025082723515377000_18.8.e264363.7","doi-asserted-by":"crossref","first-page":"833","DOI":"10.1016\/S0022-5347(17)56625-2","article-title":"Eosinophilic Pyeloureteritis: Report of a Case","volume":"122","author":"Hellstrom","year":"1979","journal-title":"J Urol"},{"key":"2025082723515377000_18.8.e264363.8","doi-asserted-by":"crossref","first-page":"615","DOI":"10.1016\/0090-4295(81)90472-6","article-title":"Eosinophilic ureteritis? Regional ureteritis with marked infiltration of eosinophils","volume":"18","author":"Uyama","year":"1981","journal-title":"Urology"},{"key":"2025082723515377000_18.8.e264363.9","doi-asserted-by":"publisher","DOI":"10.1016\/0090-4295(84)90072-4"},{"key":"2025082723515377000_18.8.e264363.10","doi-asserted-by":"publisher","DOI":"10.1016\/0090-4295(85)90261-4"},{"key":"2025082723515377000_18.8.e264363.11","doi-asserted-by":"crossref","first-page":"107","DOI":"10.1111\/j.1464-410X.1986.tb05445.x","article-title":"Eosinophilic Nephro\u2010ureteritis","volume":"58","author":"Massey","year":"1986","journal-title":"Br J Urol"},{"key":"2025082723515377000_18.8.e264363.12","doi-asserted-by":"crossref","first-page":"1256","DOI":"10.1016\/S0022-5347(17)38594-4","article-title":"Is Eosinophilic Ureteritis An Entity? 2 Case Reports and Review","volume":"145","author":"Spark","year":"1991","journal-title":"J Urol"},{"key":"2025082723515377000_18.8.e264363.13","doi-asserted-by":"crossref","first-page":"23","DOI":"10.1023\/B:UROL.0000032678.84766.70","article-title":"Recurrent flank pain caused by eosinophilic ureteritis mimicking urinary stone disease: A case report","volume":"36","author":"Sergeant","year":"2004","journal-title":"Int Urol Nephrol"},{"key":"2025082723515377000_18.8.e264363.14","doi-asserted-by":"crossref","first-page":"188","DOI":"10.1097\/00029330-200801020-00021","article-title":"Eosinophilic ureteritis: case report","volume":"121","author":"Yang","year":"2008","journal-title":"Chin Med J (Engl)"}],"container-title":["BMJ Case Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/syndication.highwire.org\/content\/doi\/10.1136\/bcr-2024-264363","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,8,28]],"date-time":"2025-08-28T06:52:04Z","timestamp":1756363924000},"score":1,"resource":{"primary":{"URL":"https:\/\/casereports.bmj.com\/lookup\/doi\/10.1136\/bcr-2024-264363"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,8]]},"references-count":14,"journal-issue":{"issue":"8","published-online":{"date-parts":[[2025,8,5]]},"published-print":{"date-parts":[[2025,8]]}},"alternative-id":["10.1136\/bcr-2024-264363"],"URL":"https:\/\/doi.org\/10.1136\/bcr-2024-264363","relation":{},"ISSN":["1757-790X"],"issn-type":[{"type":"electronic","value":"1757-790X"}],"subject":[],"published":{"date-parts":[[2025,8]]}}}